I need some help with this question

I Need Some Help With This Question

Answers

Answer 1

The speed of the ball when it leaves the gun is approximately 17.66 m/s.

Steps

To determine the speed of the ball when it leaves the gun, we can use the principle of conservation of energy. At the moment when the trigger is pulled, the spring has a potential energy equal to:

U = (1/2) k x²

where k is the spring constant and x is the amount by which the spring is compressed from its unstretched length. Using the given values, we have:

U = (1/2) (20 N/m) (0.0125 m)² = 1.5625 mJ

When the spring is released, this potential energy is converted into kinetic energy of the ball, as well as work done against friction. The work done against friction is equal to:

W = f_friction x

where f_friction is the frictional force between the ball and the barrel, and x is the distance that the ball moves along the barrel. Using the given values, we have:

W = (0.02 kg) (9.81 m/s²) (0.20) (0.05 m) = 0.01962 J

The kinetic energy of the ball is equal to the difference between the potential energy of the spring and the work done against friction:

K = U - W = 1.5625 mJ - 0.01962 J = 1.5429 J

The speed of the ball when it leaves the gun is equal to the:

v = sqrt(2K/m)

where m is the mass of the ball. Using the given value of 20 g, we have:

m = 0.02 kg

Substituting the values and evaluating the expression, we get:

v = sqrt(2(1.5429 J)/(0.02 kg)) = 17.66 m/s

Therefore, the speed of the ball when it leaves the gun is approximately 17.66 m/s.

learn more about potential energy here

https://brainly.com/question/14427111

#SPJ1


Related Questions

problem 1
A train starts at rest, accelerates with constant acceleration a for 5minutes,then travels at constant speed for another 5minutes,and the decelerates with a.suppose it travels a distance of 10km in all find a
problem 2
A ball is dropped from a height of 10m.At the same time, another ball is thrown vertically upwards at an initial speed of 10m/sec.How high above the ground will the two balls collide
problem 3
find the resultant of the two velocity vectors and also, find the angle that the resultant makes with the vector ​

Answers

The constant acceleration of the train is 50/9 m/s².

The two balls will collide at a height of approximately 10.204 meters above the ground.

How to calculate the value

Using the kinematic equations of motion, we have:

distance = initial velocity * time + 1/2 * acceleration * time^2

For the first phase of acceleration, the initial velocity is zero, the time is 5 minutes = 300 seconds, and the distance traveled is unknown. So we have:

d1 = 0 + 1/2 * a * (300)^2

For the second phase of constant speed, the initial velocity is v, the time is 5 minutes = 300 seconds, and the distance traveled is also unknown. So we have:

d2 = v * 300

For the third phase of deceleration, the initial velocity is v, the time is also 5 minutes = 300 seconds, and the distance traveled is again unknown. So we have:

d3 = v * 300 + 1/2 * (-a) * (300)^2

The total distance traveled is the sum of these three distances:

distance = d1 + d2 + d3 = 1/2 * a * (300)^2 + v * 600 - 1/2 * a * (300)^2 = v * 600

Since the total distance traveled is given as 10 km = 10000 m, we have:

v * 600 = 10000

Solving for v, we get:

v = 10000/600 = 50/3 m/s

Now we can use the second equation above to find a:

d2 = v * 300 = (50/3) * 300 = 5000 m

Therefore, the constant acceleration of the train is:

a = 2 * (5000 - 1/2 * a * (300)^2) / (300)^2 = 50/9 m/s^2

The constant acceleration of the train is 50/9 m/s^2.

Problem 2: The height of the first ball dropped is given as 10m. Let's assume the height of the collision point is h meters above the ground.

Using the kinematic equation for free fall, we have:

h = 10 + 1/2 * g * t^2

where g is the acceleration due to gravity, which is approximately 9.81 m/s^2, and t is the time it takes for the second ball to reach the collision point after being thrown upwards.

The initial upward velocity of the second ball is 10 m/s, and we know that at the collision point, its velocity will be zero, since it will have reached its maximum height and will be momentarily at rest before falling back down.

Using the kinematic equation for motion with constant acceleration, we have:

0 = 10 + (-g) * t

Solving for t, we get:

t = 10/g = 10/9.81 seconds

Substituting this value of t into the first equation, we get:

h = 10 + 1/2 * 9.81 * (10/9.81)^2

Simplifying, we get:

h = 10.204 m

The two balls will collide at a height of approximately 10.204 meters above the ground.

Learn more about acceleration on;

https://brainly.com/question/14344386

#SPJ1

P2. Charges q and Q are placed on the x-y plane at (0,0) and at (0, 3) m, respectively.
Where q = 50 pC and Q = -40 pC.
a. Draw the situation to solve the next step.
b. Determine the net electric flux through a closed cylindrical surface that has a diameter of 5 ma
a height of 4 m, where the axis of the cylinder is the z axis and its mid-point is at the origin.

Answers

(a). Here is a diagram of the situation:

        |           Q (-40 pC)

        |             ^

        |             |

 --------|----------- 3 m

        |             |

        |             |

        |             |

        |             |

        |             |

        |           q (50 pC)

        |_____________|___________> x = 0 m

            3 m

(b).  The net electric flux through the closed cylindrical surface is -100.5 N m^2/C.

We can use Gauss's Law to calculate the electric flux through the cylindrical surface.

Choose a cylindrical Gaussian surface of radius r=2.5 m and height h=4 m, centered at the origin.The electric field at any point on the cylindrical surface due to Q is given by E_Q = kQ/r^2, where k is Coulomb's constant (9 x 10^9 N m^2/C^2).The electric field at any point on the cylindrical surface due to q is given by E_q = kq/r^2.The net electric field at any point on the cylindrical surface is E_net = E_Q + E_q.Since the surface is symmetric around the z-axis, we can assume that the electric field is perpendicular to the end surfaces of the cylinder, so the electric flux through these surfaces is zero.Therefore, the net electric flux through the cylindrical surface is Φ_E = E_net * A, where A is the area of the curved surface of the cylinder.The area of the curved surface of the cylinder is A = 2πrh = 20π m^2.Substituting the values for E_Q and E_q, we get E_net = -1.60 x 10^6 N/C (negative because the electric field due to Q is in the opposite direction to that due to q).Therefore, Φ_E = (-1.60 x 10^6 N/C) * (20π m^2) = -100.5 x 10^6 N m^2/C = -100.5 N m^2/C.

Therefore, the net electric flux through the closed cylindrical surface is -100.5 N m^2/C.

What is an electric flux?

Electric flux is the measure of the total electric field passing through a surface. It is a scalar quantity, and its unit is the volt meter (V m) or newton meter squared per coulomb (N m^2/C).

To know more about gauss's law,visit:

https://brainly.com/question/16735321

#SPJ1

Use the work energy theorem to rank the final kinetic energy of a ball based on the initial kinetic energy Ki, the magnitude of a constant force F on the ball, the displacement of the ball, d and the angle, theta between the displacement of the ball and the net force on the ball. Rank from greatest kinetic energy (1) to least kinetic energy (4).

a) Ki=150J F=10N d=15m theta=90 degrees
b) Ki=300J F=200N d=1.5m theta=180 degrees
c) Ki=200J F=25N d=4m theta= 0 degrees
d) Ki=450J F=15N d=30m theta=150 degrees​

Answers

Explanation:

hope its help thank you

follow nyo po me

My favorite sports team lost the game. Can I sue the opposing team for emotional trauma?

Answers

Answer:

No, you cannot sue the opposing team for emotional trauma resulting from your favorite sports team's loss. Sports are competitive events, and it is expected that one team will win and the other will lose. It is not a legal basis for a lawsuit.

Where will the temperature most likely be the highest?
A. in a forest
B. in an open field
C. in the shade of a tree
D. in the shadow of a building

Answers

Option A because it’s the hottest out of all of them

Answer:

it's b

Explanation:

no shade, direct sunlight

true/false.if you were standing directly at the earth's north magnetic pole, in what directino would a compass point if it were free to swivel in any direction

Answers

True. The compass would point south, towards the Magnetic South Pole, if it were free to swivel in any direction.

If you were standing directly at the Earth's North Magnetic Pole, a compass would point towards the Magnetic South Pole. A compass is a simple instrument used to determine direction. It is based on the principle that Earth has a magnetic field that attracts certain metals, such as iron. The needle on a compass is a small magnet that is suspended so that it can rotate freely. When the compass is held level, the needle is able to rotate until it comes to rest along the magnetic lines of force, indicating the direction of the magnetic north. However, the magnetic North Pole is not the same as the geographic North Pole, which is the point where the Earth's axis of rotation intersects with the surface of the planet.

The Earth's magnetic field is generated by the motion of molten iron in the outer core. As a result, the magnetic field is not perfectly aligned with the axis of rotation. It is tilted at an angle of approximately 11.5 degrees. This means that the magnetic North Pole is not located at the same point as the geographic North Pole. If you were standing directly at the Earth's North Magnetic Pole, a compass would point towards the Magnetic South Pole. This is because the North and South Poles of a magnet are opposite. When the north-seeking pole of a compass needle is placed near the North Magnetic Pole, it will be attracted to the south-seeking pole of the Earth's magnetic field, which is located in the vicinity of the Magnetic South Pole.

To learn more about Magnetic South Pole ;

https://brainly.com/question/30221661

#SPJ11

Which one of the following types of electromagnetic radiation is produced by the sudden deceleration of high speed electrons?
a.x-rays
b.microwaves
c.infrared radiation
d.visible light
e.gamma rays

Answers

The correct answer is a. x-rays is produced by the sudden deceleration of high speed electrons.

What is x-rays?

When high-speed electrons are suddenly decelerated or slowed down, they release energy in the form of electromagnetic radiation. This process is known as bremsstrahlung or "braking radiation". The energy of the emitted radiation depends on the initial speed of the electrons and the degree of deceleration.

In the case of bremsstrahlung, the emitted radiation can range from radio waves to gamma rays, but the highest energy radiation produced by bremsstrahlung is x-rays. Therefore, the sudden deceleration of high-speed electrons produces x-rays.

X-rays are ionizing radiation, meaning that they have enough energy to remove electrons from atoms or molecules, which can cause damage to living tissue. Therefore, exposure to X-rays should be limited and controlled to minimize health risks.

To know more about x-rays, visit:

https://brainly.com/question/29790297

#SPJ1

Complete question is: x-rays is produced by the sudden deceleration of high speed electrons.

Alice and Bob start walking toward each other when they are 111.8 m apart. Alice has a speed of 1.8 m/s and Bob has a speed of 1.4 m/s. Alice's dog Spot starts at her side at the same time and runs back and forth between them at 6.5 m/s. By the time Alice and Bob meet, what distance has Spot run in meters? Select one: A. 113.5 B. 151.4 C. 252.3 D. 227.1 E. 283.9

Answers

Answer:

They are approaching at speed 1.8 + 1.4 = 3.2 m/s

T = 111.8 / 3.2 = 34.94 sec to reach each other

S = V T     where V = 6.5 m/s      Spot's speed

6.5 m/s * 34.9 = 227.1 m

(D) 227.1 m    the distance Spot has to run

Why does the safety curtain need to be loosely draped?

Answers

The safety curtain needs to be loosely draped so that it will move easily with the movement of the actors. This will prevent any potential safety hazards from occurring, such as the curtain becoming stuck or snagging on any props or scenery.

Additionally, it is important for the curtain to not be too tight as this could prevent it from falling properly.
The safety curtain needs to be loosely draped so that it can fall easily in case of an emergency.What is a safety curtain?A safety curtain is a fire-resistant metal or asbestos curtain that is suspended above the stage of a theater. In the case of a fire, the curtain is designed to descend quickly and close off the stage area, preventing flames from spreading to the auditorium and providing an escape route for the actors and stage crew.

In the case of an emergency, the safety curtain must drop down without difficulty. That is why the safety curtain must be loosely draped. The safety curtain is supported by a counterweight and a rope system that is positioned over the stage's proscenium arch.

The safety curtain, for example, is used in theatres to protect the audience in the event of a fire. It's also used as a barrier between the stage and the audience. A fire-resistant cloth or metal shutter that, in the event of a fire, may be lowered to cut off the stage from the rest of the theatre is known as a safety curtain.

For more such questions on safety

https://brainly.com/question/29546272

#SPJ11

which of the following is a nonanthropogenic source of carbon dioxide emissions into the atmosphere?

Answers

Volcanic eruptions are a nonanthropogenic source of carbon dioxide emissions into the atmosphere.

What is volcanic eruption?

A volcanic eruption is a natural or nonanthropogenic source of carbon dioxide emissions into the atmosphere. During a volcanic eruption, carbon dioxide and other gases are released from the Earth's mantle and can contribute to the atmospheric concentration of carbon dioxide.

However, the amount of carbon dioxide emitted by volcanoes is relatively small compared to the amount emitted by human activities such as burning fossil fuels. While volcanic eruptions are a natural source of carbon dioxide emissions, the amount emitted by volcanoes is relatively small compared to the amount emitted by human activities such as burning fossil fuels.

To know more about volcanic eruption, visit:

https://brainly.com/question/30028532

#SPJ1

Complete question is: Volcanic eruptions are a nonanthropogenic source of carbon dioxide emissions into the atmosphere.

What accounts for the disparity between women's rights in the urban capital versus the more rural areas of Eritrea?
The practice of female genital mutilation is considered abhorrent in much of the world, and is in fact illegal even in Eritrea. Why would Laila be so conflicted about the procedure for her own daughter?
What are the implications for women's rights in Eritrea beyond this particular practice? What might bring about change?

Answers

Explanation:

The disparity between women's rights in urban and rural areas in Eritrea can be attributed to various factors such as cultural beliefs, traditional values, lack of education, and access to resources. Urban areas generally have more access to education, healthcare, and job opportunities, which can empower women and increase their participation in society. However, rural areas are often more traditional and conservative, and women may face more barriers to accessing education, healthcare, and employment opportunities.

Laila's conflict about the practice of female genital mutilation for her daughter is likely due to her cultural and social upbringing. While she may recognize the physical and psychological harm that the practice can cause, she may also feel pressure to conform to traditional values and beliefs. Additionally, there may be social consequences for not following the practice, such as being ostracized from the community.

Beyond female genital mutilation, women in Eritrea face various challenges to their rights and equality, including limited access to education, gender-based violence, and discrimination in employment and political representation. Bringing about change would require a multi-faceted approach, including education and awareness-raising campaigns, legal and policy reforms, and empowerment programs for women. It would also require addressing the underlying societal and cultural norms that perpetuate gender inequality.

how much work is done to a 2.0 kg cart that moves 10.0 m/s to 15 m/s

Answers

The cart has undergone work done is 125 Joules of labor.

A finished job is what?

To move an object, it must be transformed into energy. Force can be used to transmit energy. The work done is the amount of energy that a force used to move an object.

We must apply the following formula to determine the amount of work done on the cart:

W = K = (1/2)mvf2 - (1/2)mvi2 where m is the cart's mass, vf is the end velocity, and vi is the beginning velocity. K is a symbol for kinetic energy change.

By entering the specified values, we obtain:

[tex]W = (1/2) x 2.0 kg x (15 m/s)^2 - (1/2) x 2.0 kg x (10 m/s)^2[/tex]

[tex]W = (1/2) x 2.0 kg x 225 m^2/s^2 - (1/2) x 2.0 kg x 100 m^2/s^2[/tex][tex]W = (1/2) x 2.0 kg x 225 m^2/s^2 - (1/2) x 2.0 kg x 100 m^2/s^2[/tex]

[tex]W = 125 J[/tex]

To know more about work done visit:-

https://brainly.com/question/8632803

#SPJ1

A rock on a string is whirled fast enough to move in a vertical circle as shown. Gravity is acting downward.What is the direction of the rock's acceler- ation at the position shown?

Answers

At the position shown in the diagram, the rock's acceleration is pointing towards the centre of the circle. This means that the acceleration is directed downwards, in the opposite direction of gravity. The acceleration is a vector, so it can be represented as "vertical", pointing directly downwards.


At the position shown, the direction of the rock's acceleration is downwards. This is because the force acting on the rock is gravity, which is pulling the rock towards the center of the circle. Thus, the direction of the acceleration is always towards the center of the circle in vertical circles.

The motion of the rock is a combination of uniform circular motion and free fall. When the rock is at the topmost point of the circle, its velocity is zero, and it begins to fall under the influence of gravity. At this point, the acceleration of the rock is solely due to gravity and is equal to g (acceleration due to gravity).As the rock moves down the circle, the force of gravity and the tension force acting on the string combine to provide a net force acting towards the center of the circle.

This provides the centripetal acceleration that keeps the rock moving in a circle. At the bottommost point of the circle, the tension force in the string becomes zero, and the acceleration of the rock is solely due to gravity, but this time it acts in the direction of the tension force (i.e., towards the center of the circle).

For more such questions on gravity

https://brainly.com/question/1752905

#SPJ11

a motor uses kn of force to power a vehicle that has a top speed of m/s. what is the power delivered by the motor? round answers to one decimal place.

Answers

A motor uses kn of force to power a vehicle that has a top speed of m/s. The power delivered by the motor is 9.8 kW (kilowatts).

To compute the power delivered by the motor, use the following formula:

P = Fv

Where:

P is the power delivered by the motor

F is the force exerted by the motor

v is the velocity at which the motor delivers the force

First, convert the force from kN to N by multiplying it by 1000 kN = 1000 N.

Now we can substitute the values in the formula:

P = 1000 N × m/sP = 1000 Nm/s

To convert Newton-meter to watts, divide it by the conversion factor 1 W = 1 J/s.

So:P = 1000 Nm/s / 1 WP = 1000 W

To convert watts to kilowatts, divide it by 1000. So:

P = 1000 W / 1000P = 1 kW

The power delivered by the motor is 1 kW.

Rounding it to one decimal place:

P = 1.0 kW

for such more question on power delivered

https://brainly.com/question/17162287

#SPJ11

Which of the following LEAST LIKELY affects or is the result of circulation of surface water in the oceans?
A. Trade winds
B. Gyres that circulate clockwise in the Atlantic and Pacific oceans
C. Energy from the Sun
D. Coriolis force
E. Katabatic winds

Answers

D. Coriolis force is the least likely to affect or be the result of circulation of surface water in the oceans. The Coriolis force is an inertial force that affects the movement of large masses of air or water, but it does not cause the surface water in the oceans to circulate.

The other four choices, A. Trade winds, B. Gyres that circulate clockwise in the Atlantic and Pacific oceans, C. Energy from the Sun, and E. Katabatic winds, all have an effect on surface water circulation. For example, trade winds push the surface water of the ocean from east to west, gyres circulate in a clockwise direction, energy from the Sun evaporates surface water, and katabatic winds push down cooler air from the mountains to the sea.


C. Energy from the Sun is the least likely factor to affect or result from the circulation of surface water in the oceans. The circulation of surface water in the ocean is primarily caused by the combined effect of wind, Earth’s rotation, and the ocean’s topography. Therefore, the option C. Energy from the Sun least likely affects or is the result of circulation of surface water in the oceans.The other factors mentioned are known to affect the circulation of surface water in the oceans. Wind is one of the primary factors that drive the ocean currents, which is also responsible for the movement of warm and cold water from one region to another.

Wind-generated ocean currents that set water into motion by blowing on its surface, cause water to move from one region to another. The Coriolis effect results in the formation of gyres in the oceans, which are also responsible for the circulation of surface water. Katabatic winds are responsible for mixing and churning up the water. In conclusion, the ocean current is a combination of several factors that work together to move the water from one place to another.

For more such questions on inertial

https://brainly.com/question/9114266

#SPJ11

find the acceleration find the acceleration a of the sled. express your answer in terms of some or all of the variables s , v1 , and v2 .

Answers

General, acceleration (a) can be calculated using the following formula:

a = (v2 - v1) / t

where v1 is the initial velocity, v2 is the final velocity, and t is the time interval over which the change in velocity occurs.

If you know the values of s, v1, and v2, you may be able to solve for t using the following kinematic equation:

s = v1*t + (1/2)at^2

Once you have determined the time interval (t), you can plug the values of v1, v2, and t into the first formula to calculate the acceleration (a).

What is an acceleration ?

Acceleration is the rate of change of velocity with respect to time. In other words, it is the measure of how quickly an object's velocity is changing. Acceleration can be in the direction of motion or opposite to it, depending on whether the object is speeding up or slowing down.

The standard unit of acceleration is meters per second squared (m/s^2). If an object's velocity changes by 1 meter per second (m/s) every second, its acceleration is said to be 1 m/s^2.

Accelerations can be either positive or negative. Positive acceleration occurs when an object's speed is increasing, while negative acceleration (also known as deceleration) occurs when an object's speed is decreasing.

To know more about Accelerations visit :

https://brainly.com/question/30660316

#SPJ1

Two identical projectiles are fired at the same time. Projectile A has a speed of 300m/s and projectile B has a speed of 600m/s. What is the ratio of the Kinetic Energy of projectile B to projectile A?

Answers

The ratio of the kinetic energy of projectile B to projectile A is 4:1.

The kinetic energy (KE) of an object is given by the formula

KE = 1/2 * m * v^2

where m is the mass of the object and v is its velocity.

Assuming the two projectiles have the same mass, we can compare their kinetic energies based solely on their velocities:

KE_B/KE_A = (1/2 * m * v_B^2)/(1/2 * m * v_A^2)

= (v_B^2/v_A^2)

Substituting the values given in the problem:

KE_B/KE_A = (600 m/s)^2 / (300 m/s)^2

= 4

Therefore, the ratio of the kinetic energy of projectile B to projectile A is 4:1. Projectile B has four times the kinetic energy of projectile A.

What is kinetic energy?

Kinetic energy is the energy an object possesses by virtue of its motion. It is a scalar quantity that depends on the mass and velocity of the object.

To know more about kinetic energy, visit:

https://brainly.com/question/26472013

#SPJ1

The wavelength of the photon emitted by a hydrogen atom when an electron makes a transition from n = 2 to n = 1 state is :

Answers

The wavelength of the photon emitted by a hydrogen atom when an electron makes a transition from n = 2 to n = 1 state is 121.6 nm.

It is the most straightforward type of atom, with only one electron in its atomic shell. When an electron in a hydrogen atom moves from one energy level to another, it emits or absorbs a photon of light with a particular energy, E.

This energy difference can be found using the Rydberg formula for hydrogen atom wavelengths.

[tex]λ= 1/((Ry) × (1/ n1^2 - 1/ n2^2))[/tex]

where Ry = 1.097 x 107 m-1, and n1 and n2 are the initial and final quantum numbers of the electron, respectively.

In this instance, the electron goes from the n = 2 state to the n = 1 state.

The energy difference can be calculated as follows:

E = Rh (1/n2² - 1/n1²)

E = 2.18 × 10⁻¹⁸ J(1/12 - 1/22)

E = 1.63 × 10⁻¹⁸ J

The frequency of the photon emitted can be calculated

asv = E/hv = 1.63 × 10⁻¹⁸ J/6.63 × 10⁻³⁴

J.sv = 2.46 × 10¹⁴ Hz

Finally, we can use the formula c = λvc = λv

to find the wavelength of the photon emitted.

c/ v = λ121.6

nm = λ

Therefore, the wavelength of the photon emitted by a hydrogen atom when an electron makes a transition from n = 2 to n = 1 state is 121.6 nm.

for such more question on  wavelength

https://brainly.com/question/10728818

#SPJ11

Can someone check my answers? If I’m incorrect can you correct me? Thank you. Image below.

Answers

Explanation:

a) looks correct  EXCEPT   KE and GPE labels are reversed ( if the one on the L is initially and the R one is at max height)

b) looks good

c)  incorrect       total energy will be KE + GPE =   57.51 J at any point

d) correct

Three inductors are connected in parallel. Inductor 1 has an inductance of 2.5 H, inductor 2 has an inductance of 1.8 H, and inductor 3 has an inductance of 1.2 H. What is the total inductance of this circuit?

Answers

The total inductance of the circuit is approximately 0.559 H.

When inductors are connected in parallel, the total inductance is given by the formula:

1/L = 1/L1 + 1/L2 + 1/L3

where  L1, L2, and L3 are the inductances of the individual inductors.

Substituting the given values, we get:

1/L = 1/2.5 + 1/1.8 + 1/1.2

Simplifying the equation, we get:

1/L = 0.4 + 0.5556 + 0.8333

1/L = 1.7889

Taking the reciprocal of both sides, we get:

L = 1/1.7889

L ≈ 0.559 H

Therefore, the total inductance of the circuit is approximately 0.559 H.

What is an inductance ?

Inductance is a property of an electrical circuit or component, such as a coil or inductor, that opposes any change in the electric current flowing through it. It is a measure of the amount of magnetic energy that is stored in a circuit when a current is passed through it.

To know more about inductance, visit:

https://brainly.com/question/29981117

#SPJ1

23.____ are pieces of metal that are temporarily attached to the weldment’s parts to enable them to be forced intoplace. Anytime these pieces of metals are used, they must be removed and the area ground smooth.a.Hammersc.Jacksb.Anvilsd.Cleats or dogs

Answers

Cleats or dogs are pieces of metal that are temporarily attached to the weldment’s parts to enable them to be forced into place. Anytime these pieces of metal are used, they must be removed, and the area around Smooth

In this case option D

Cleats or dogs are pieces of metal that are commonly used in welding to temporarily attach the parts of the weldment in place. They are typically small metal pieces with angled ends that can be clamped or welded onto the parts being joined to hold them in the correct position during the welding process.

Once the welding is completed, the cleats or dogs must be removed and the area where they were attached must be ground smooth.

This ensures that the final welded joint has a smooth and even surface and that there are no residual metal pieces that could interfere with the joint's structural integrity.

To know more about " Cleats or dogs. here

https://brainly.com/question/28447542

#SPJ4

The beat frequency produced when a 240 hertz tuning fork and a 246 hertz tuning fork are sounded together is
a) 245 hertz
b) 240 hertz
c) 12 hertz
d) 6 hertz
e) none of the above

Answers

The beat frequency produced when a 240-hertz tuning fork and a 246-hertz tuning fork are sounded together would be 6 hertz. Option D.

Frequency combination

The beat frequency produced when two tuning forks are sounded together is equal to the absolute value of the difference between their frequencies.

In this case, the beat frequency is:

|240 Hz - 246 Hz| = |-6 Hz| = 6 Hz

Therefore, the answer is (d) 6 hertz.

More on beat frequency can be found here: https://brainly.com/question/14705053

#SPJ1

Determine the linear velocity of blood in the aorta with a radis of 1.5 cm, if the duration of systole is 0.25 s, the stroke volume is 60 ml.

Answers

Answer:

The linear velocity of blood in the aorta can be calculated using the equation:

v = Q / A

where v is the linear velocity, Q is the volume flow rate, and A is the cross-sectional area of the vessel.

The volume flow rate Q can be calculated using the equation:

Q = SV / t

where SV is the stroke volume and t is the duration of systole.

The cross-sectional area of the aorta can be calculated using the equation:

A = πr^2

where r is the radius of the aorta.

Given that the radius of the aorta is 1.5 cm, the stroke volume is 60 ml, and the duration of systole is 0.25 s, we can calculate the volume flow rate Q:

Q = SV / t = 60 ml / 0.25 s = 240 ml/s

Converting the units of Q to cm^3/s:

Q = 240 ml/s × 1 cm^3/1 ml = 240 cm^3/s

We can then calculate the cross-sectional area of the aorta:

A = πr^2 = π × (1.5 cm)^2 = 7.07 cm^2

Finally, we can calculate the linear velocity of blood in the aorta:

v = Q / A = 240 cm^3/s / 7.07 cm^2 = 33.9 cm/s

Therefore, the linear velocity of blood in the aorta is 33.9 cm/s.

imagine a 24 ml sample of snow from the mountains. when the snow melts, what is the volume of liquid water? assume that the snow has density 0.5g/ml.

Answers

When the snow melts, it will form liquid water, and the volume of the water will be equal to the volume of the original snow sample. Therefore, the volume of liquid water produced by the melting of the 24 ml sample of snow is also 24 ml.

If the snow has a density of 0.5 g/ml, then the mass of the snow is:

mass = density x volume = 0.5 g/ml x 24 ml = 12 g

Therefore, the volume of liquid water produced by the melting of the 24 ml sample of snow is also 24 ml.

What is volume?

Volume of liquid refers to the amount of space that a liquid occupies. It is a measure of the three-dimensional space that the liquid occupies and is usually measured in units such as liters, milliliters, gallons, or fluid ounces. The volume of a liquid is determined by the shape of the container in which it is placed, and it can be measured directly using a graduated cylinder or other volumetric measuring device.

What is density?

Density is a physical property of matter that describes how much mass is present in a given volume of a substance. It is defined as the mass of a substance per unit volume, and is typically measured in units such as grams per milliliter (g/mL) or kilograms per cubic meter (kg/m³).

To know more about volume, visit:

https://brainly.com/question/13338592

#SPJ1

A proton moves along the x-axis with v_x=1.0×10^7m/s. As it passes the origin, what are the strength and direction of the magnetic field at the (0 cm, 1 cm, 0 cm) position? Give your answer using unit vectors.

Answers

Here ya go! i think this will help!

A photodetector has three polarizing films between it and a source of
unpolarized light. The first film is oriented vertically. At what angle should the
second polarizing film be oriented so that 37.5 percent of the original light
intensity reaches the detector?
Investigation 12 Electromagnetic Radiation

Answers

The angle between the polarization direction of the second film and the vertical direction should be approximately 51.4° so that 37.5% of the original light intensity reaches the detector.

Steps

Let's denote the angle between the vertical polarization direction of the first film and the polarization direction of the second film by θ. The transmitted intensity of the light after passing through the two films is given by Malus's law:

I = I₀ cos²θ

where I₀ is the initial intensity of the unpolarized light.

We want to find the angle θ that will result in 37.5% of the original light intensity reaching the detector. This means that we want to solve the equation:

I/I₀ = 0.375

Substituting the expression for I into this equation, we get:

cos²θ = 0.375 / I₀

Taking the square root of both sides and using the fact that cosθ is positive when 0 ≤ θ ≤ π/2, we get:

cosθ = √(0.375 / I₀)

θ = arccos(√(0.375 / I₀))

Now we need to substitute the values of I₀ and evaluate the expression for θ. Let's assume that the intensity of the original light is I₀ = 1 W/m². Then we get:

θ = arccos(√(0.375 / 1)) = arccos(0.6124) = 51.4°

Therefore, the angle between the polarization direction of the second film and the vertical direction should be approximately 51.4° so that 37.5% of the original light intensity reaches the detector.

learn more about photodetector here

https://brainly.com/question/16028899

#SPJ1

looking for net force of Q1

Answers

The net force is negative, which means it is directed towards q₂ and q₃, in the opposite direction to q1.

What is Coulomb's constant?

Coulomb's constant (k) is a proportionality constant found in Coulomb's law. Coulomb's law describes the electrostatic force between two point charges and states that the force is proportional to the product of the charges and inversely proportional to the square of the distance between them.

The mathematical expression for Coulomb's law is:

F = k *q₁* q₂ / r²

where F is the electrostatic force between two point-charges q1 and q2, separated by a distance r. The constant k is known as Coulomb's constant and has a value of approximately 9 × 10⁹ N·m²/C².

The net force on particle q1 is the vector sum of the forces exerted on it by particles q₂ and q₃, which can be calculated using Coulomb's law:

F12 = k * q₁ * q₂ / r₁₂²

F23 = k * q₂ * q₃ / r₂₃²

where k is Coulomb's constant (9 × 10⁹ N·m²/C²), r₁₂ and r₂₃ are the distances between q₁ and q₂, and q₂ and q₃, respectively.

Since the particles are in a straight line, the forces F₁₂ and F₂₃ will be in opposite directions and will cancel each other out to some extent. q1will have net force:

F net = F₁₂ +  F₂₃

To calculate the net force, we need to plug in the given values:

q₁ = -2.35 × 10⁻⁶ C

q₂ =-2.35 × 10⁻⁶ C

q₃= -2.35 × 10⁻⁶ C

r₁₂ = r23 = 0.100 m

Substituting these values, we get:

F₁₂ = (9 × 10⁹ N·m²/C²) * (-2.35 × 10⁻⁶ C)² / (0.100 m)²

= -4.396 N

F₂₃ = (9 × 10⁹ N·m²/C²) * (-2.35 × 10⁻⁶ C)² / (0.100 m)²

= -4.396 N

Therefore, the net force on q1 is:

F net = F₁₂ + F₂₃

= -4.396 N + (-4.396 N)

= -8.792 N

To know more about Coulomb's law, visit:

https://brainly.com/question/506926

#SPJ1

Find the acceleration vector for the charge. Enter the x, y, and z components of the acceleration in meters per second squared separated by commas. A= m/s^2 To practice Problem-Solving Strategy 27.1: Magnetic Forces. A particle with mass 1.81 xio-3 kg and a charge of 1.22 times sign 10^-8 C has, at a given instant, a velocity v = (3.00 times sign 10^4 m/s)j. What are the magnitude and direction of the particle's acceleration produced by a uniform magnetic field B=(1.63 T)i+(0.980 T)j? Draw the velocity v and magnetic field B vectors. Since they have different units, their relative magnitudes aren't relevant. Be certain they have the correct orientations relative to the given coordinate system. The dot in the center of the image represents the particle. Recall that i, j, and k are the unit vectors in the x, y, and z directions, respectively

Answers

The x, y, and z components of the acceleration are -3.17 x 10^2 m/s^2, -3.17 x 10^2 m/s^2, and -3.17 x 10^-1 m/s^2, respectively.

What is Acceleration?

Acceleration is the rate of change of velocity with respect to time. It is a vector quantity, meaning it has both magnitude and direction. When an object undergoes acceleration, its velocity changes either in magnitude, direction, or both. The formula for acceleration is a = (v_f - v_i) / t, where a is acceleration, v_f is final velocity, v_i is initial velocity, and t is the time taken for the change in velocity.

Using the formula for the magnetic force on a moving charged particle, F = q(v x B), we can find the acceleration vector by dividing the force by the mass of the particle, a = F/m.

The velocity vector v = (0, 3.00 x 10^4, 0) m/s has only a y-component, and the magnetic field vector B = (1.63, 0.980, 0) T has only x- and y-components. Therefore, the cross product of v and B only has a z-component:

v x B = (3.00 x 10^4)i x 0.980j - (3.00 x 10^4)j x 1.63i = -4.71 x 10^7 k m/s

The magnetic force on the charge is then given by:

F = q(v x B) = (1.22 x 10^-8 C)(-4.71 x 10^7 k m/s) = -5.74 x 10^-1 N k

Finally, the acceleration vector is:

a = F/m = (-5.74 x 10^-1 N k)/(1.81 x 10^-3 kg) = (-3.17 x 10^2 i - 3.17 x 10^2 j - 3.17 x 10^-1 k) m/s^2

Learn more about Acceleration from given link

https://brainly.com/question/460763

#SPJ1

P1. A -15 nC point charge is placed on the x- y plane at the point (8, 16) m and receives a force of
(21 +4j) N.
Calculate the electric field vector at the point (8,16) m.
b. Determine the magnitude and the sign of the point charge that is placed at the origin and
that produces the electric field that you calculated in a.

Answers

a) We can use Coulomb's law to calculate the electric field vector at the point (8,16) m due to the point charge placed on the x-y plane.

The electric field vector is given by E = F/q, where F is the force exerted on the point charge and q is the magnitude of the charge. The force exerted on the charge is (21 + 4j) N. The magnitude of the charge is given by q = F/E, where E is the electric field at the point (8,16) m. Therefore, we have:

E = F/q = (21 + 4j) N / (-15 nC) = (-1.4 - 0.267j) x 10⁶ N/C

So, the electric field vector at the point (8,16) m is (-1.4 - 0.267j) x 10⁶N/C.

b) To determine the magnitude and sign of the point charge that produces the electric field calculated in part (a), we can use the formula for the electric field of a point charge. The electric field at a point P due to a point charge q located at the origin is given by:

E = kq/r²

where k is the Coulomb constant

q is the charge of the point charge, and r is the distance between the point charge and point P. We can rearrange this equation to solve for q:

q = Er²/k

Substituting the values

for E and r (r = sqrt(8² + 16²) = 17.89 m) we get:

q = (-1.4 - 0.267j) x 10^6 N/C x (17.89 m)² / (8.99 x 10⁹ N m²/C²) = -5.37 nC

So, the magnitude of the point charge is 5.37 nC and its sign is negative, indicating that it is an additional negative charge placed at the origin that produces the electric field calculated in part (a).

To know more about magnitude , visit :

https://brainly.com/question/14452091

#SPJ1

The electric field vector at the point (8, 16) m is (-5.53i - 11.07j) N/C. and

the magnitude of the point charge is 2.11 nC and the sign is negative, indicating that it is the same as the original point charge placed on the x-y plane.

The steps are as following to calculate the given question :-

a. To calculate the electric field vector at the point (8, 16) m due to the -15 nC point charge, we can use Coulomb's law:

The distance between the two points is given by:

r = sqrt[(8-0)^2 + (16-0)^2] = 17.8885 m

The electric field vector is given by:

E = k*q/r^2 * r_hat

where k is the Coulomb constant (k = 9x10^9 N*m^2/C^2), q is the charge of the point charge, r_hat is the unit vector pointing from the point charge to the point of interest.

Since the point charge is negative, the electric field vector points towards the point charge. Therefore, r_hat = -icosθ - jsinθ, where θ is the angle between the vector pointing from the point charge to the point of interest and the x-axis.

θ = atan2(16, 8) = 63.43 degrees

So, r_hat = -0.4472i - 0.8944j

Plugging in the values, we get:

E = (9x10^9 Nm^2/C^2)(-15x10^-9 C)/(17.8885m)^2 * (-0.4472i - 0.8944j)

E = -5.53i - 11.07j N/C

Therefore, the electric field vector at the point (8, 16) m is (-5.53i - 11.07j) N/C.

b. To find the magnitude and sign of the point charge that produces this electric field, we can use the formula:

E = k*q/r^2

where E is the magnitude of the electric field, k is the Coulomb constant, q is the charge of the point charge, and r is the distance between the point charge and the point of interest.

Plugging in the values, we get:

E = (9x10^9 N*m^2/C^2)*q/(17.8885m)^2

-11.07 N/C = (9x10^9 N*m^2/C^2)*q/(17.8885m)^2

Solving for q, we get:

q = -2.11x10^-9 C

Therefore, the magnitude of the point charge is 2.11 nC and the sign is negative, indicating that it is the same as the original point charge placed on the x-y plane.

To know more about charge visit :-

https://brainly.com/question/18102056

#SPJ1

TRUE/FALSE.The mass of the Sun compared to the mass of all the planets combined is like the mass of an elephant compared to the mass of a cat.

Answers

The answer is true because average temperatures of Venus is 740 kelvin
Other Questions
According to ________, various economic classes have different degrees of power when it comes to who can make and enforce laws in society.a. C. Wright Millsb. Karl Marxc. Robert Mertond. Emile Durkheim which of the following are correct? total fixed cost does not change with output in the short run. in the long run, all costs are variable. total fixed cost must be added to total variable cost to determine total cost. fixed costs exist only in the long run. what physical processes occurred to cause a devastating tsunami waves like the one in southeast asia in 2004? connie always worries that something terrible is about to happen even when her environment is secure. she constantly fidgets and never feels relaxed. connie is most likely to be diagnosed with as a 4.4-kg object moves from (2 i 5 j) m to (6 i - 2 j) m, the constant resultant force acting on it is equal to (4 i - 3 j) n. if the speed of the object at the initial position is 4.9 m/s, what is the work done by the force, and what is its kinetic energy at its final position? as your answer in canvas, write the kinetic energy in joules.\ What does Jack suggest will make him a better hunter? if having your license suspended for driving too fast makes you less likely to speed when you get it back, then the suspension is an example of Both Bond Bill and Bond Ted have 12.4 percent coupons, make semiannual payments, and are priced at par value. Bond Bill has 5 years to maturity, whereas Bond Ted has 22 years to maturity. Requirement 1: If interest rates suddenly rise by 3 percent, what is the percentage change in the price of these bonds? (Do not round intermediate calculations. Negative amounts should be indicated by a minus sign. Round your answers to 2 decimal places (e.g., 32.16).) Percentage change in priceBond Bill %Bond Ted %Requirement 2: If rates were to suddenly fall by 3 percent instead, what would be the percentage change in the price of these bonds? (Do not round intermediate calculations. Round your answers to 2 decimal places (e.g., 32.16).) Percentage change in priceBond Bill %Bond Ted % the hue of pigmentation which are produced by mixing equal amount of a secondary hue and a primary hue, such as red-orange this component of the male duct system carries sperm from outside the body into the abdominal cavity. fit for life foods reports the following income statement accounts for the year ended december 31 gain on sale of equipment 6320depreciation expense office copier 480office supplies expense760sales discounts15 700insurance expense1 370sales returns and allowances3 900sales217 000tv advertising expense2 200office salaries expense31 300interest revenue600rent expense selling space10 300cost of goods sold89 000sales salaries expense23 100sales commission expense13 000prepare a multiple step income statement imagine a scenario where a man is stranded on a desert island. he first finds a source of potable water and some fruits to eat. only after his thirst and hunger are satisfied does he set about building a shelter for the night. once the man has met his physiological and security needs, he will set about searching for other people on the island. which of the following needs of the man stranded on a desert island does this scenario illustrate? group of answer choices o prepotent needs ocreative behavior o self-actualizationo needs intrinsic o motivation Match these items. Match the items in the left column to the items in the right column.1. conserve2. distribute3. quantity4. scarceto divide amongto savelimitedamount Subtract the given equation 3x-(4x-11) In the figure, a4.4 kgblock is accelerated from rest by a compressed spring of spring constant640 N/m. The block leaves the spring at the spring's relaxed length and then travels over a horizontal floor with a coefficient of kinetic friction k=0.296. The frictional force stops the block in distanceD=7.7 m. What are (a) the increase in the thermal energy of the block-floor system, (b) the maximum kinetic energy of the block, and (c) the original compression distance of the spring? (a) Number Units (b) Number Units In the figure, a4.4 kgblock is accelerated from rest by a compressed spring of spring constant640 N/m. The block leives the spring at the spring's relaxed length and then travels over a horizontal floor with a coefficient of kinetic friction 2=0.296. The frictional force stops the block in distanceD=7.7 m. What are (a) the increase in the thermal energy of the block-floor system, (b) the maximum kineticenergy of the block, and (c) the original compression distance of the spring? (a) Number Units (b) Number Units FILL IN THE BLANK.an advantage of behavior checklists over interviews is that checklists allow a clinician to ___ while interview typically do not. 2. all of the following are accurate pairings of a researcher with their contributions regarding learning except: a. ivan pavlov - demonstrated how the acquisition of a cr depends on pairing the cs and the us (c b.f. skinner - designed an operant chamber to study how operant behavior is reinforced and shaped john b. watson - showed the importance of learning by watching a model and imitating the model's behavior e. edward tolman - demonstrated learning occurs but may not be apparent until there is an incentive to demonstrate it martin seligman - contributed to our understanding of how learned helplessness develops in animals and humans rank the relative rates of the alkyl halides in an sn1 reaction.H3C-1 CH3 CH3 CH HC Fastest SN 1 reaction Slowest SN 1 reaction Answer Bank CH3 H3C. CH3 H3C. HC CH3 CH3 Imagina que tocas algo muy spero que te resulta muy doloroso que informacin envas a tu cerebro ? Qu respuesta crees que dar tu cerebro a esta situacin? Jerry, Jack and Sophie are all hoping to save money! Jerry thinks saving money in a shoe box in his closet every month is a good idea. He decides to start with $125, and then save $50 each month. Jack was given $3520 from his Grandma, and decides to put the moneyinto an account that has a 6.5% interest rate that is compounded annually. Sophie has earned $3500 working at the movie theater decides to put her money in the bank in an account that has a 7.05% interest rate that is compounded continuouslyPart 1: Describe the type of equation that models Jerrys situation. Create that equation of Jerrys situation. Using the equation you created, how much money will be in Jerrys account after 3 years? 10 years?Think: What do I know and what does it mean? What plan am I going to try?PLEASE HELP!!!!!