when you measure the average kinetic energy in a substance, you are measuring its

Frequency is inversely proportional to the time period. That is, f = 1/T.

This refers to the number of waves that passes a fixed place in a given amount of time.  Frequency is measured in hertz, this is equal to one event per second.

What is period, T ?

This refers to the time needed for one complete cycle of vibration to pass a given point. A period is measured in seconds.

Note:  AS the frequency of a wave increases, the period of the wave decreases. Frequency and Period are in reciprocal relationships.

Mathematically :

f = 1/T

T =Total time,Period

f =  Frequency

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Since linear momentum equals m v, it varies at each bounce by the same amount, r = R. For instance, if a ball bounces eighty percent of its height each time, it loses twenty percent of its energy each time.

An object's heat uptake or loss and the consequent temperature variations are related by the description above and the following equation (Q = m•C•T).

We now know that heat can occasionally be acquired or lost without a corresponding change in temperature. When the material is changing states, this is what happens.

The mass and speed of an item moving determine how much kinetic energy it has.

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An average tendon can withstand 16000 per square inch of force (psi). The Achilles tendon may begin to fail at a force of F = 1280 pounds.

That meaning of the term "force" is obvious. At this point, it is quite acceptable to refer to a force as a push or possibly a pull. An item does not "have energy in it" or "encompass energy." A force is applied to one thing by another. A factor is anything that affects non-living things as well.

Inertia is what holds the cosmos together. Literally. That could prevent matter from having the electric forces necessary to produce its system layout. Vibrating particles generate heat and rotational motion, which operate to counteract inertia.

Area of tendon 0.4×0.2

=0.08 square inch.

0.08 square inch tendon =16000×0.08

F =1280 pound.

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12). When you move your hand or foot, your body has converted potential energy into kinetic energy.

13). When coasting while roller skating, you eventually stop due to

friction causes kinetic energy to transfer to thermal energy.

14).  A ball has 100 J of potential energy when it is on a shelf. The kinetic energy of the ball the instant it hits the floor is Kinetic increases, potential decreases.

Kinetic energy is the force that propels motion, which can be seen in the movement of a particle, an object, or a group of particles. A person walking, a baseball being thrown, a piece of food falling from a table, and a charged particle in an electric field are all examples of objects in motion that use kinetic energy.

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The focal length of the mirror is 50cm.

This refers to the distance from the lens or mirror to the focal point(F). It is measured in centimeters, cm or meters,m.

Formula for calculating the focal length of the mirror:

f = R * 2

Where,

f = focal length

R = the radius of curvature

What is a focal point (F)?

This refers to the point where by rays or waves meet after reflection or refraction, or the point from which diverging rays or waves appear to proceed.

In the question:

R = 25cm

f = R * 2

Substituting the values we have:

f = 25cm* 2

f = 50cm

Hence, the focal length of the mirror is 50cm.

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Protons within a nucleus are attracted to each other because of a)the nuclear force.So,correct option is a.

One thing that actually helps to reduce the repulsion between the protons within a nucleus is due to the presence of neutrons. Since they have no charge so, they don't add to the repulsion which is already present, and they help to separate the protons from each other so they don't feel as strong a repulsive force from any other nearby protons.Because of presence of neutons,nucleus attracts the protons with strong nuclear force.

Now two type of force are acting on proton one is repulsive force due to same charge and nuclear force due to protons.Here nuclear force are more stronger than repulsive force due to that nucleus remains stable.

Hence, correct option is a.

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(Complete question) is:

protons within a nucleus are attracted to each other by group of answer choices

a) the nuclear force.

b)opposite charges.

c) their energy levels.

d)electron repulsion.

The larger objects are rounded essentially comes down to gravity. The gravitational pull of an object will always be directed toward its mass centre. The more massive and gravitational attraction something has, the bigger it is.

The strength of the object itself opposes such force for solid objects. For instance, you are not drawn into the centre of the Earth by the downward force of gravity. The reason for this is that the ground is pushing back up at you; it is too strong to allow you to sink through it. The power of Earth has its limits, though. Imagine a massive mountain, like Mount Everest, becoming bigger and bigger as the planet's plates collide. Everest starts to sink as it gets taller due to its weight increasing. The mountain's height will be constrained as a result of the additional weight forcing it deeper into the Earth's mantle.

Hence, planets moves in fixed orbits.

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(A) The two additional forces that act on the sled as it travels from the top of the hill to the bottom are friction force and weight of the children.

(B) The force of friction is opposing the motion while the weight of the children is assisting the downward motion.

The forces that act on the sled as it travels from the top of the hill to the bottom with either aid the downward motion or oppose the downward motion.

The forces acting on the sled include the following;

The weight of the children is acting downwards and it will increase the motion downwards since there in the same direction.

The force of friction between the surface of the sled and the hill will oppose the downward motion of the children as the father exerts the downward force.

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The speed of light is 299,792,458 m/s.

What is speed of light?

The speed of light is a fundamental physical constant denoted by the letter c. It is the speed at which light propagates through empty space, a vacuum. In the International System of Units (SI), the speed of light is given as exactly 299,792,458 meters per second. This is the speed of light in a vacuum, and because light does not travel at the same speed through different substances, the speed of light in a material is always less than this value.

This means that it takes 1 second for light to travel 299,792,458 m.
Therefore, it would take (20,000,000,000 m / 299,792,458 m/s) = 66.66 seconds for a radio frequency signal to travel round-trip between earth and a MEO satellite at 20,000 km.

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Answer:

Explanation:

w

The maximum voltage that can be applied across the series resistors is Vtmax = 86.2 V. Resistor 5.6k Q will burn out first if the excessive voltage is applied.

A resistor is a passive two-terminal electrical component used in circuits to implement electrical resistance. Resistors have a variety of uses in electronic circuits, including lowering current flow, adjusting signal levels, dividing voltages, biasing active components, and terminating transmission lines.

Electrical parts called rheostats are constructed from resistive wire wound around a ceramic core. They were once employed to regulate the amount of power used by ovens, heaters, and motors.

The following 1 ⁄4 W resistors are in series and the voltages in each are:

Therefore, the Vtmax = 86.2 V is the highest voltage that can be applied across the series resistors. The 5.6k Q resistor will burn out first if too much voltage is applied.

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The question is incomplete. Your most probably complete question is given below:

Problems related to Power in Series Circuits

Q.1 The following 1/4 W resistors are in series: 1.2k, 2.2k Q, 3.9k 2, and 5.6k Q. What is the maximum voltage that can be applied across the series resistors without exceeding a power rating? Which resistor will burn out first if excessive voltage is applied?

The acceleration due to gravity on a planet with 1/2 the mass of Earth and 2 times the radius of Earth would be one fourth of the acceleration due to gravity on Earth.

Acceleration is the rate of change of velocity in a given direction. It is a vector quantity, meaning it has both a magnitude (or amount) and a direction associated with it. Acceleration is caused by forces, such as gravity, friction, engine thrust, or any other unbalanced force. It is measured in meters per second squared (m/s2). Acceleration can also be negative, meaning that it is in the opposite direction of the velocity. When an object is accelerating, its speed is increasing but its direction can be changing or staying the same.

This is because the acceleration due to gravity is inversely proportional to the square of the radius, and directly proportional to the mass. Therefore, the acceleration due to gravity on the planet would be (1/2)(1/4) = 1/8 of Earth's gravity.

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The reaction force to the action force during a rocket launch would be C. the force exerted by the ground or launch pad on the rocket.

The force that the ground or launch pad applies to the rocket during a rocket launch will act as a reaction force to the action force. The rocket is propelled upward by the force of explosion caused by the burning fuel and expanding gases. The force that keeps the rocket grounded and keeps it from moving is known as the reaction force, and it is the force that the launch pad or ground exerts in response to this action force.

Equal in magnitude but directed in the opposite direction, the action and reaction forces act on various objects. The reaction force affects the ground or launch pad, whereas the action force affects the rocket.

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Complete question

During a rocket launch, the action force is considered the force of explosion from the burning fuel and expanding gases. Which of the following would be considered the reaction force?

A. The starting force

B. The force of the explosion

C. The force exerted by the ground or launch pad on the rocket.

The correct answer is option a. According to the uncertainty principle, the more we know about a particle's momentum, the less we know about its location or position.

The uncertainty principle is a fundamental principle in quantum mechanics that states that it is impossible to simultaneously know both the exact position and momentum of a particle. This is because any attempt to measure the position of a particle with high accuracy will inevitably disturb its momentum and vice versa.

The uncertainty principle is a consequence of the wave-particle duality of quantum mechanics, which states that all particles exhibit both wave-like and particle-like behavior. When we measure the position or momentum of a particle, we are essentially measuring the wave-like properties of the particle, which are inherently uncertain. This uncertainty is inherent in the nature of the universe and cannot be overcome, no matter how advanced our measurement technologies become.

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N is the total number of full load cycles, and S is the stress change. The area to the left and below the line represents cyclic stress and cycle count combinations for which no fatigue failure is anticipated to happen.

The distribution of forces, often known as stresses, under cyclic stress changes repeatedly throughout time. Imagine one of the huge wheels that propels an aerial lift, like a ski lift, as an illustration.

The plot of every one of these numbers is known as the cyclic stress-strain curve. Following plastic deformation, the material behaves as described by the curve. Typically, this activity differs from the initial action that is assessed in a conventional tensile test.

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5.16883548 m is the wavelength, if E.M radiation has a frequency of 58,000,000 Hz.

Given data :

Formula:

        λ = C/f

Where,

λ (Lambda) = Wavelength in meters

c = Speed of Light (299,792,458 m/s)

f = Frequency

λ  = 58,000,000 / 299,792,458 = 5.16883548

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If the stone is dropped off a cliff and hit the ground with speed of 120 ft/sec , then the height of the cliff is  225 feet .

a stone is dropped off a cliff ,

the speed at which the stone hit the ground is = 120 ft/s ;

the Kinematic Equation states that ,  v - u = 2gh ;

since the stone was at rest when it was dropped off cliff  ,

the initial velocity (u) is = 0 ;

it hit the ground with speed 120 ft/sec , so the final velocity (v) is = 120 .

the acceleration due to gravity (g) is taken as 32 ft/s² .

substituting the values in the kinematic equation ,

we get ;

120² - 0² = 2*32*h

14400 = 64*h ;

h = 14400/64 ;

So , h = 225 ft .

Therefore , the height of the cliff is 225 ft .

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The mechanical energy of the oscillator is lost in each cycle is 7.44%.

Mechanical energy- (Kinetic energy or potential energy-) is the energy- of either an objective in motions or the energy that is stored in objects by their position. Mechanical energy is also a driver of renewables to energy. Many forms of the  renewable energy relying on Mechanical energy to be the  adequately produced power or converted energy.

Since the energy is proportional to the amplitudes squared,then  we found the fractional changes (assumed small) is,

EE ,−E≈ E

dE=xm2dx

m2=xm2

2xmdxm=2x

mdx.m

Thus, if we approximately the fractional changes in  x

m​as x mdx m

then the above-mentioned calculations of shows that multiplying by  this by  2  should be give them fractional energy- change. Therefore, if  x

m decreases by  3.72%, then  E  must decreased by  7.44%.

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The work done by the given force field for an object moving across a path that is the boundary of the region bounded is 10 JOULE

To find the work done by a force field for an object moving across a path that is the boundary of a region, we can use the following equation:

W = ∫F(r)⋅dr

where W is the work done, F(r) is the force field acting on the object, and r is the position vector of the object. The integral is taken over the path of the object.

In this case, the path of the object is the boundary of the region bounded by the upper semicircle centered at the origin with radius 2 and the x-axis. The orientation of the path is counterclockwise. The force field acting on the object is given by:

F(r) = E

where E is a constant force field.

To find the work done by the force field, we can substitute the form of the force field and the path of the object into the work equation and evaluate the integral:

W = ∫E⋅dr

= ∫10⋅dr

= 10 ∫dr

The path of the object is the boundary of the region bounded by the upper semicircle centered at the origin with radius 2 and the x-axis. We can parameterize this path by expressing the position vector r in terms of a parameter t:

r = xi + yj

where x and y are functions of t and i and j are unit vectors in the x and y directions, respectively.

Substituting the parameterized form of the position vector into the work equation, we get:

W = 10 ∫(xi + yj)⋅dr

= 10

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Recommend frequent hand washing are the treatment method developed after the discovery of germ theory.

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The first minimum of an a- wideslit is produced by 410-nm ultraviolet light at an angle of 11.8, and by 700-nm red light at an angle of 20.5.

The lens and cornea are impervious to light with UV wavelengths less than 360 nm. As a result, violet light, which ranges in wavelength from 360 nanometers to 400 nanometers, is the best light for controlling myopia from both an efficacy and safety perspective.

d

sin

θ

=

n

λ

2

(

sin

θ

)

=

(

1

)

(

410

×

10

−

9

)

sin

θ

=

410

×

10

−

9

2

=

2.05

×

10

−

7

θ

=

sin

−

1

(

2.05

×

10

−

7

)

=

1.17

×

10

−

5

Thus the angle is

1.17

×

10

−

5

.

(b.)

Given data

The width of slit is

d

=

2.00

m

.

The number of minimum is

n

=

1.

The wavelength is, \lambda =700 nm

The wavelength of violet light, which ranges from 380 to 450 nanometers, is at the higher end of the visible spectrum (in experiments, people have so far seen to 310 nm). In contrast to X-rays and gamma rays, ultraviolet light has a wavelength that is shorter than violet but greater than both of them. In general, light violet is used to compose violet items.

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Energy cannot be generated or destroyed; it can only be changed from one form of energy to another, according to the rule of conservation of energy. This implies that a system always possesses the same amount of energy, barring external energy addition.

According to the rule of conservation of energy, energy cannot be generated or destroyed. It can only be changed from one form to another, though. It is simply changed from a form that we can use to one that is less useful. Energy problem as a result of this

Energy efficiency is necessary to save expenses and extend the life of the resources.

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Answer:

Below

Explanation:

The friction subtracts from the forward force

F = ma

(5000 - 1250) / 1500 = a    = 2.5 m/s^2

The sign of qsystem and qsystem are - qsystem>0 and qsystem>0.

The Q-system for rock mass-containing classifications is developed by the barton, Lien, and Lunde. It expresses the quality of the rock mass-containing in the so-called Q-value, on whichs designe are based and support recommendations of the underground excavations.

systems is a portions of the Universe that had been chosen up for studying in the changed that takes places withing it in responses to varying conditions. A systematic may be complexity, such as a planet, or relatively simple, as the liquid withing a glass.

Beacuse when system gain extra heat then surrounding q is posetive and when the surrounding works on the system then w is also positive.

Thus both qsystem and

qsystem are same.

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Answer:

conduction i think

Explanation:

Answer:Conduction

Explanation:

Initial velocity=- 80km/h, the diameter of the tyre= 75cm, and revolution= 300. initial angular velocity wi= v/r (80) (5/18)/75/200= 59.26 rad/sec. so, angular acceleration is 0.93 rad/sec2.

We must first determine the tires' angular acceleration. Let's transform the provided translational velocity to rotational velocity to do this. Thus, the tires' angular acceleration is 2.42 rad/s2 rad/s2.

The angular velocity (w), a vector quantity in a uniform circular motion, is determined by dividing the angular displacement (), also a vector quantity, by the change in time (t). Speed is equal to |w|R and is calculated by dividing the arc length traveled (S) by the change in time (t).

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Answer:

Together, the number of protons and the number of neutrons determine an element's mass number: mass number = protons + neutrons. If you want to calculate how many neutrons an atom has, you can simply subtract the number of protons, or atomic number, from the mass number.

Explanation:

When it happens mother should have to do cool the burn with tap water for 10 to 20 minutes immediately.

Stop the burning process. Cool the burn. Supply pain relief.

Before the arrival of qualified emergency help, you should:

Pain and skin injury from wet heat or vapors can result from hot water scalding. Because the damaged tissues and cells are destroyed, this kind of burn can be deadly. The heat could even cause your body to go into shock. These burns can be fatal in more severe circumstances.

Cool the burn.

Place the affected area under cool (not cold) flowing water for about 10 minutes. Until the pain goes away, apply a cool, wet cloth to the burned area of the face. If you have a mouth burn from hot food or drink, place a piece of ice in your mouth for a while.

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The number of times the train accelerated is 3 times.

option 3 is the correct answer.

The number of times the train accelerates in the given scenario depends on the speed or velocity of the train at every given time.

a = Δv / Δt

where;

From the formula given above, the train will only accelerate whenever there is a change in the velocity of the train. If the velocity of the train is constant, then the acceleration of the train will be zero.

The number of acceleration of the train in the given scenario is determined as follows;

Thus, from the illustration given above, the train change its speed three times and accelerated in those situation.

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Answer:

To find the acceleration of a car slowing from 12 m/s to a stop in 15 seconds, we can use the formula a = (vf - vi) / t, where a is the acceleration, vf is the final velocity, vi is the initial velocity, and t is the time. In this case, the initial velocity is 12 m/s, the final velocity is 0 m/s (since the car is coming to a stop), and the time is 15 seconds. Plugging these values into the formula, we get a = (0 - 12) / 15 = -0.8 m/s^2. This means that the car is slowing down at a rate of 0.8 meters per second squared.

0.32 m/s²  the acceleration of a 250000 kg jumbo jet just before takeoff when the thrust on the aircraft is 80000 nn.

Acceleration the rate at which the speed and direction of a moving object vary over time. A point or object going straight forward is accelerated when it accelerates or decelerates. Even though the speed remains constant, motion on a circle accelerates because the directions is always shifting. Due to the fact that it includes both magnitude and direction, velocity is a quantity. As the rate at which velocity changes, acceleration is likewise a vector quantity.

The formula may be used to determine an object's acceleration given its mass and the force acting on it.

a= f/m

f is the force

m is the mass

a = 80000 / 250000

a = 0.32 m/s²

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