describe the direction in which the wire could be moved to produce the maximum potential difference across it ends, r and s

Answers

Answer 1

The direction in which the wire could be moved to produce the maximum potential difference across it ends, r and s at its ends R and S by moving left to right.

Potential difference, also known as voltage, is a measure of the difference in electric potential energy between two points in an electrical circuit. It is defined as the amount of work per unit of charge required to move an electric charge from one point to another point in an electric field.

In simple terms, potential difference refers to the difference in electric potential between two points in an electrical circuit. The greater the potential difference between two points, the more work is required to move electric charges between those points. This is because the electric charges experience an electric force that pushes them from a region of high potential energy to a region of low potential energy.

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Related Questions

Estimat the number and wattage of lamps. which would be required to illuminate a workshop space 60x1.5 meteres by means of lamps mounted 5 metres above the working Plane The average illumination required is about 100 wt. coefficient of utilisation = 0.4 luminous efficiency 16 lumens per watt. Assume a space-height ratio of unity and a cundle Power depreciation of 20%​

Answers

The number and wattage of lamps required to illuminate the workshop would be approximately 8 lamps and 70 watts respectively.

Wattage calculation

To estimate the number and wattage of lamps required to illuminate a workshop space of 60x1.5 meters, we can follow these steps:

Calculate the area of the workshop:

Area = length x widthArea = 60m x 1.5mArea = 90 square meters

Determine the total lumens required:

Lumens = area x average illuminationLumens = 90 sq m x 100 luxLumens = 9000 lumens

Adjust for the coefficient of utilization and luminous efficiency:

Effective lumens = lumens / (coefficient of utilization x luminous efficiency)Effective lumens = 9000 / (0.4 x 16)Effective lumens = 1406.25 lumens

Adjust for space-height ratio and candle power depreciation:

Effective lumens per lamp = effective lumens x space-height ratio x (1 - depreciation)Effective lumens per lamp = 1406.25 x 1 x (1 - 0.2)Effective lumens per lamp = 1125 lumens

Determine the number of lamps required:

Number of lamps = total lumens required / effective lumens per lampNumber of lamps = 9000 / 1125Number of lamps = 8 lamps (rounded up)

Determine the wattage of each lamp:

Wattage per lamp = effective lumens per lamp / luminous efficiencyWattage per lamp = 1125 / 16Wattage per lamp = 70.3 watts (rounded up)

Therefore, approximately 8 lamps with a wattage of 70 watts each would be required to illuminate the workshop space.

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How would you ensure that the food you have prepared remains hot till you reach to hospital?​

Answers

Employ heat packs to keep food warm during delivery. To keep the food as warm as possible and the heat packs well-insulated, place them directly in the bag with the food containers.

Select the correct answer. In a given chemical reaction, the energy of the products is greater than the energy of the reactants. Which statement is true for this reaction? A. Energy is absorbed in the reaction. B. Energy is released in the reaction. C. No energy is transferred in the reaction. D. Energy is created in the reaction. E. Energy is lost in the reaction. Reset Next

Answers

A - energy is absorbed during the reaction

3. Large amplitude vibrations produced when the of receiver of the applied forced vibration matches the

Answers

An object's amplitude dramatically increases when the frequency of the applied forced vibrations matches the object's natural frequency. Resonance describes this behavior.

Theory A wave's amplitude directly relates to the quantity of energy it can carry. A wave with a high amplitude carries a lot of energy, whereas one with a low amplitude carries only a little. A wave's strength is determined by the typical energy that moves through a given area in a certain amount of time and in a particular direction.The sound wave's amplitude grows in proportion to its strength. We perceive louder noises to be of higher intensity. Comparative sound intensities are frequently expressed using decibels (dB)

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The compressions in a sound wave are far apart and more energy is supplied by the vibrating source. Which statement best describes how this will affect the wave and what you hear?

A: The wavelength will increase, and the sound will become louder.
B: The amplitude will increase, and the sound will become louder.
C: The frequency will increase, and the pitch will become higher.
D: The intensity will increase, and the pitch will become higher.

Answers

The sound will get louder and the amplitude will rise. The separation between compressions in a sound wave indicates that the wave's wavelength has grown.

What happens when a sound wave is compressed and rarefied?

When particles travel in close proximity to one another, compression occurs, creating areas of intense pressure. In contrast, when particles are separated from one another in low-pressure locations, rarefactions take place. As the tines of a vibrating tuning fork move back and forth, compressions and rarefactions are produced.

What does it signify when a longitudinal wave's compressions are spaced widely apart?

Compressions and rarefactions are terms used to describe where a medium's particle distribution spreads out farther from one another.

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clock a remains in place and clock b is carried around the earth ( 40,000 km). by how many seconds will is clock b slower if carried on

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Clock a remains in place and clock b is carried around the earth (40,000 km). According to Einstein's theory of relativity, The clock b is slower by approximately 44.6 seconds.

According to Einstein's theory of relativity, time dilation takes place when an object moves at a velocity close to the speed of light. The closer the velocity is to the speed of light, the more time slows down. This is why time on Earth is slower at high altitudes than it is on the ground.

According to the theory, the same effect happens when objects are moving at a high speed, which is why clocks that are taken on an airplane, for example, appear to be ticking more slowly.

1. The following equation is used to determine the time dilation:

t = t0 / √(1 – v²/c²),

where t is the time elapsed, t0 is the time at rest, v is the velocity, and c is the speed of light. When the earth rotates on its axis, every point on the planet's surface moves at a different velocity, with the highest velocity at the equator, and the velocity decreases as we move towards the poles. The earth's circumference at the equator is roughly 40,000 kilometers (24,901 miles).
As a result, a person standing on the equator would be traveling at a speed of around 1,674 kilometers per hour (1,040 miles per hour) because the earth spins once every 24 hours. We must first determine the velocity of a point on the earth's surface at the equator before we can use the equation to calculate time dilation.

2. We use the formula

v = 2πr / T,

where v is velocity, r is the radius of the earth, and T is the time it takes the earth to complete one rotation. The formula is as follows:

v = 2πr / Tv

= 2 x 3.14 x 6,378 km / 24 hv

= 1,674 km/h

3. Substituting these values into the equation, we get:

t = t0 / √(1 – v²/c²)t = t0 / √(1 – (1,674 m/s)² / (299,792,458 m/s)²)t = t0 / √(1 – 2.8 x 10^-8)t = t0 / 0.9999999714

This means that the clock on the equator will tick slightly slower than it would at rest. The difference in time can be calculated by subtracting the two values:

t – t0 = t0 / 0.9999999714 – t0t – t0 = t0 (1 – 0.9999999714)t – t0 = 0.0000000286 t0

4. We must first calculate the amount of time elapsed on the equator if a clock b is carried 40,000 km around the earth. It is easy to calculate the distance and speed, but we must also consider that the earth is rotating as well. As a result, we must determine the combined speed of the earth's rotation and the motion of clock b relative to the earth's surface.

5. To calculate this combined velocity, we can use the Pythagorean theorem, which states that the square of the hypotenuse of a right triangle is equal to the sum of the squares of the other two sides. If we imagine the velocity of the earth's rotation as the base of the triangle and the velocity of clock b as the height of the triangle, we can use this theorem to calculate the combined velocity as follows:

combined velocity = √(1,674² + vclock²)

where v clock is the velocity of clock b. Since clock b is being transported at the equator, it has the same velocity as the earth's rotation. As a result, we can substitute 1,674 km/h for v clock:

combined velocity = √(1,674² + 1,674²)

combined velocity = √(2 x 1,674²)

combined velocity = 2,367 km/h

6. Substituting the combined velocity into the equation for time dilation, we obtain:

t – t0 = t0 (1 – √(1 – v²/c²))t – t0 = t0 (1 – √(1 – (2,367 km/h)² / (299,792,458 m/s)²))t – t0

= t0 (1 – √(1 – 1.579 x 10^-11))t – t0

= t0 (1 – 0.999999999920215)t – t0

= 0.000000000079785 t0

Converting this value to seconds, we get:

0.000000000079785 t0 = 79.785 ns

Now we can combine the time dilation for the earth's rotation and the motion of clock b to obtain the total time dilation:

t – t0 = 0.0000000286 t0 + 0.000000000079785 t0t – t0 = 0.000000028679785 t0

Substituting the value of t0 (one second) into the equation, we get:

t – 1 = 0.000000028679785 seconds

Therefore, clock b will be approximately 44.6 seconds slower than clock a after being carried 40,000 km around the earth.

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diagram below shows some of the forces acting on a car of mass 800 kg.





a. State the size of the total drag force when the car is travelling at constant speed.

b. The driving force is increased to 3200 N.

i. Find the resultant force on the car at this instant.

ii. Write down, in words, the equation connecting mass, force and acceleration.

iii. Calculate the initial acceleration of the car.

c. Explain why the car will eventually reach a new higher constant speed.​

Answers

Answer:

Without a diagram or image, it's difficult to answer this question accurately. However, I can provide a general answer based on the information given.

a. When a car is traveling at constant speed, the net force acting on the car is zero. Therefore, the total drag force acting on the car must be equal in magnitude to the driving force provided by the engine.

b. i. The resultant force on the car when the driving force is increased to 3200 N can be calculated as follows:

Resultant force = Driving force - Drag force

Since the drag force is still equal in magnitude to the driving force (as the car is still moving at a constant speed), the resultant force is zero.

Resultant force = 3200 N - 3200 N = 0 N

ii. The equation connecting mass, force, and acceleration is:

Force = mass x acceleration

This can be rearranged to find acceleration:

Acceleration = Force / mass

iii. To calculate the initial acceleration of the car, we can use the equation above:

Acceleration = 3200 N / 800 kg = 4 m/s²

c. The car will eventually reach a new, higher constant speed because the driving force provided by the engine is now greater than the drag force acting on the car. This means there is a net force acting on the car, causing it to accelerate. As the car accelerates, its speed increases and the drag force acting on the car increases as well. Eventually, the drag force will once again be equal in magnitude to the driving force, and the car will reach a new, higher constant speed where the net force acting on the car is once again zero.

(please mark my answer as brainliest)

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

Answers

Refer to the attached image.

Overall: Parts (a) and (c) need to be corrected.

Based on what you learned about the roller coaster ride, which of the following statements about energy transformations are true? Select all that apply.
A.Kinetic energy can be converted into several other types of energy
B.Only gravitational potential energy can be converted into kinetic energy
C.A change in an object's speed is evidence that the object's kinetic energy is changing

Answers

Based on what you learned about the roller coaster ride, the following statements about energy transformations that are true are: A. Kinetic energy can be converted into several other types of energyC. A change in an object's speed is evidence that the object's kinetic energy is changing.

The process of energy transformation is the conversion of one form of energy into another. This term describes the scientific process by which energy, in various forms, is transformed to do work. Energy transformation occurs in every physical system in the universe.

Kinetic energy can be converted into several other types of energy.Kinetic energy is the energy of a moving object. The energy is converted into various types of energy, such as electrical and thermal energy, as a result of movement. In a roller coaster, kinetic energy is converted into potential energy as the train goes up the lift hill. The potential energy is converted back into kinetic energy as the train goes down the first drop.

A change in an object's speed is evidence that the object's kinetic energy is changing.Kinetic energy changes when an object's speed changes. If an object slows down, its kinetic energy decreases, while if it speeds up, its kinetic energy increases. On the roller coaster, as the train moves up and down the track, its speed varies, causing changes in its kinetic energy.

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according to j. richard hackman and gerg oldham, which of the following is a factor necessary for job enrichment to be effective?

Answers

Job enrichment is a strategy used to motivate workers by adding the responsibility and diversity of their work. variant d

Feedback is essential to effective plant enrichment. Successful job enrichment depends on numerous effects, including acceptable backing and operation support, and clear performance norms.

Job Enrichment is a system of hand engagement in which jobs are designed to have intriguing and grueling tasks that may bear further chops and may increase pay.

The purpose of job enrichment is to compound the tasks performed by each hand, allow them to perform tasks in different ways, and eventually give them more control over the work they perform.

One of the most important motorists of change in professional enrichment programs is feedback. This not only needs to be done at the hand- director position, but also needs to be encouraged within the brigades.

Question

According to J. Richard Hackman and Gerg Oldham, which of the following is necessary for job enrichment to be effective?

a) Hygiene

b) Dissatisfied

c) Valencia

d) feedback

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A 120-kN truck has an engine that transmits a power of 380 kW to all the wheels. If the wheels do not slip on the ground, determine the angle of the largest incline the truck can climb at a constant speed of 72 km/h.

Answers

To determine the angle of the largest incline the truck can climb at a constant speed of 72 km/h, we need to use the formula for power, which is P = Fv, where P is the power, F is the force, and v is the velocity.

What is the equation for the maximum incline angle as ?

Since the velocity is constant, the force required to maintain this speed up an incline is equal to the force of gravity acting on the truck, which is given by Fg = mg, where m is the mass of the truck and g is the acceleration due to gravity.

Thus, we can write the equation for the maximum incline angle as:

sinθ = Fg/F

where θ is the angle of the incline. Substituting the given values, we get:

sinθ = (mg)/Pv

sinθ = (120000 kg)(9.81 m/s²)

sinθ =( 0.157)/(380000 W)(20 m/s)

θ = 9.04 degrees

Therefore, the angle of the largest incline the truck can climb at a constant speed of 72 km/h is approximately 9.04 degrees.

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The maximum angle of incline the truck can climb at a constant speed of 72 km/h without slipping is approximately 18.3 degrees.

calculation of the question :-

First, we need to calculate the force required to maintain a constant speed of 72 km/h on an incline. We can use the following formula:

Force = weight * sin(theta) + rolling resistance + air resistance

where weight is the weight of the truck, theta is the angle of the incline, rolling resistance is the force required to overcome the friction between the wheels and the ground, and air resistance is the force required to overcome air resistance.

Since the wheels do not slip on the ground, the rolling resistance is equal to the weight of the truck multiplied by the coefficient of rolling resistance, which is typically around 0.01. Air resistance is typically negligible at lower speeds, so we can ignore it in this case.

Let's assume the weight of the truck is 120 kN and the coefficient of rolling resistance is 0.01. We can now calculate the force required to maintain a constant speed of 72 km/h on an incline:

Force = 120 kN * sin(theta) + 0.01 * 120 kN

Next, we need to determine the power required to produce this force. We can use the following formula:

Power = force * speed

where speed is the speed of the truck in meters per second. Since the speed of the truck is 72 km/h, or 20 m/s, we can calculate the power required:

Power = (120 kN * sin(theta) + 0.01 * 120 kN) * 20 m/s

Now we can use the given engine power of 380 kW to determine the maximum angle of incline:

380 kW = (120 kN * sin(theta) + 0.01 * 120 kN) * 20 m/s

Simplifying this equation, we get:

sin(theta) = (380 kW / (120 kN * 20 m/s)) - 0.01

sin(theta) = 0.3167

Taking the inverse sine of both sides, we get:

theta = sin^-1(0.3167) = 18.3 degrees

Therefore, the maximum angle of incline the truck can climb at a constant speed of 72 km/h without slipping is approximately 18.3 degrees.

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The capacitor in the figure has a capacitance of 27 µF and is initially uncharged. The battery provides a potential difference of 116 V. After switch S is closed, how much charge will pass through it?

Answers

The charge that passes through the capacitor is 3.132 mC (milli Coulombs). Therefore, option B. 3.132 mCis the correct answer.

The circuit shown below is a simple circuit consisting of a battery, a capacitor, and a switch.

The capacitance of the capacitor is 27 µF, and it is initially uncharged. After switch S is closed, how much charge will pass through it?

Circuit diagram with a capacitor

The expression for the amount of charge (Q) that passes through the capacitor is

Q = CΔV,

where, C is the capacitance of the capacitor and

ΔV is the potential difference between the plates of the capacitor.

Q = CΔV = (27 × 10-6 F)(116 V)

Q = 3132 × 10-6 C

Q = 3.132 mC

The charge that passes through the capacitor is 3.132 mC (milli Coulombs).

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5.32 calculate ix and vo in the circuit of fig. 5.70. find the power dissipated by the 60-k resisto

Answers

The power dissipated by the 60-k Ohm resistor is 3 mv and 24mv.

[tex]=V_1=V =4mv\\=I_{iN}=\frac{4mv}{10k}=0.4\mu A\\= \frac{V_1 - V+}{50k}=0.4\mu A\\V_1 - 4m= 20m\\V_1 = 24mv[/tex]

[tex]i_x=\frac{V_1}{20+(6 || 3)} =\frac{24*10^{-3}}{(20+2.857)*10^{3}}\\i_x=1.05\mu A\\i_0=\frac{i_x*60}{60+3}=1\mu A\\V_0=3k*1\mu=3mv\\V_0=3mv[/tex]

An Ohm resistor is a passive electrical component that restricts the flow of current in an electrical circuit. It is named after Georg Simon Ohm, a German physicist who discovered Ohm's law which states that the current flowing through a conductor between two points is directly proportional to the voltage across the two points.

An Ohm resistor has a resistance value measured in ohms, which determines how much it restricts the flow of current. The higher the resistance value, the more it restricts the current flow. Ohm resistors are commonly used in electronic circuits to control the voltage and current levels, and to protect sensitive electronic components from damage. They can also be used to divide voltages, as voltage dividers, or as current limiting devices.

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Complete Question: -

Calculate i_x and v_o in the circuit of Fig. 5.70. Find the power dissipated by the 60-k Ohm resistor.

The outer edge of a rotating Frisbee with a diameter of 30 cm has a linear speed of 3.2 m/s

What is the angular speed of the Frisbee? In rad/s

Answers

The angular speed of the Frisbee is 21.33 rad/s.

What is Angular speed ?

Angular speed is a measure of how fast an object is rotating or moving around a central point or axis. It is a scalar quantity, which is defined as the rate of change of the object's angular displacement over time, expressed in units of radians per second (rad/s).

Angular speed is calculated using the formula:

Angular speed (ω) = Δθ / Δt

The linear speed of the outer edge of the Frisbee is given by:

v = 3.2 m/s

The diameter of the Frisbee is given by:

d = 30 cm = 0.3 m

The radius of the Frisbee is half the diameter:

r = d/2 = 0.15 m

The linear speed of a point on the edge of a rotating object is related to the angular speed by the formula:

v = ωr

where ω is the angular speed in radians per second.

Substituting the given values, we can solve for ω:

ω = v/r

ω = 3.2 m/s / 0.15 m

ω = 21.33 rad/s (rounded to two decimal places)

Therefore, the angular speed of the Frisbee is 21.33 rad/s.

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If you have just used a velocity selector for electrons and you wish to use it to choose positrons with the same speed, do you have to change any settings which are related to electric field and magnetic field on the velocity selector? Explain your answer with the aid of labelled diagram. [4 marks]​

Answers

Answer:

Explanation:

Yes, to select positrons with the same speed as the electrons, the settings for the electric and magnetic fields on the velocity selector need to be changed.

The velocity selector works by applying both an electric field and a magnetic field perpendicular to each other, as shown in the diagram below:

              |                       B

              |                  /--------->

              |                /       /

              |              /       /

              |            /       /

    V        |        /       /

 <----------|__/___/_____________

              |        E

The electrons or positrons enter from the left with an initial velocity, V. The electric field E and magnetic field B are adjusted such that only particles with a specific velocity will be able to pass through the velocity selector and reach the detector on the right.

To select positrons with the same speed as the electrons, the direction of the electric field needs to be reversed. This is because the electric force on a positively charged particle is in the opposite direction of the force on a negatively charged particle. Therefore, if the electric field is reversed, the force on the positron will be in the same direction as the force on the electron. This will allow the positrons with the same speed as the electrons to pass through the velocity selector.

The magnetic field does not need to be changed, as it only affects the trajectory of the particles and not their speed. Therefore, the magnetic field will remain the same as it was for the electrons.

In summary, to choose positrons with the same speed as electrons using the velocity selector, only the direction of the electric field needs to be reversed, while the magnetic field remains the same.

Based on the excerpts, which statement best describes civil rights progress for Black people between 1855 and 2019?
Civil rights have primarily been driven by public officials and legislative action.
Advocates for the expansion of civil rights have often sought to take a slow and deliberate path.
Access to the ballot box is guaranteed for all through legislation, and this has been the case since after the Civil War.
It is no longer legal to enslave people, but it took violence and significant legislation to secure legal rights, while access to voting rights remains a challenge.

Answers

It is no longer legal to enslave people, but it took violence and significant legislation to secure legal rights, while access to voting rights remains a challenge.

What is  significant ?

The term "significant" can have different meanings depending on the context. In general, it implies that something is important, meaningful, or has a noteworthy impact or effect.

In the context of statistics, the term "significant" often refers to statistical significance, which is a measure of whether an observed effect or result is likely to be real and not just due to chance. A result is said to be statistically significant if the probability of obtaining that result by chance alone is very low, usually below a  threshold of 5% or 1%.

In scientific research, a finding or result is considered significant if it has practical implications or contributes to the understanding of a particular phenomenon or field of study. It may also be significant if it challenges existing theories or beliefs and leads to new insights or discoveries.

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Topic: Rotational Motion

The motor in an electric saw brings the circular blade from rest up to the rated angular velocity of 80.0 rev/s in 240.0 rev. One type of blade has a moment of inertia of 1.41×10^-3 kg.m^2. Determine the net torque (assumed constant) the motor must apply to the blade.

Answers

Answer:

To solve this problem, we can use the equation for rotational motion:

Δθ = (1/2) α t^2 + ω0 t

where Δθ is the change in angle, α is the angular acceleration, t is the time, and ω0 is the initial angular velocity.

In this case, we know that the initial angular velocity is 0 (since the blade is at rest), the final angular velocity is 80.0 rev/s, and the number of revolutions is 240.0 rev. We can use these values to find the angular acceleration:

ωf = ω0 + αt

80.0 rev/s = 0 + α(240.0 rev)

α = 80.0 rev/s / 240.0 rev

α = 1/3 rev/s^2

Now that we know the angular acceleration, we can use the moment of inertia and the torque equation:

τ = Iα

where τ is the torque, I is the moment of inertia, and α is the angular acceleration.

Substituting the given values, we get:

τ = (1.41×10^-3 kg.m^2)(1/3 rev/s^2)

τ = 4.70×10^-4 N.m

Therefore, the net torque the motor must apply to the blade is 4.70×10^-4 N.m.

If the constant force F0 is applied to stretch a material described by the Maxwell model, what would be the initial elongation value at t=0.-0-F0/k-F0/(k+n)-F0/(k+(n/t))

Answers

The initial elongation of the material described by the Maxwell model is given by the formula, initial elongation = [tex]F_0[/tex]/k.

The initial elongation value at t=0 for the material described by the Maxwell model is given by the formula, initial elongation = [tex]F_0[/tex]/k.

Here, k represents the spring constant of the material.

Let's understand this in detail.

The Maxwell model is a type of viscoelastic model that is used to describe the behavior of certain materials. It is made up of a spring and a dashpot in series.

The spring represents the elastic component of the material and the dashpot represents the viscous component of the material.

In this model, the deformation of the material depends on the applied force as well as the time duration for which the force is applied.

The formula to calculate the initial elongation of the material is given by:

initial elongation = [tex]F_0[/tex]/k

where [tex]F_0[/tex] is the force applied to stretch the material and k is the spring constant of the material. The spring constant of a material is defined as the amount of force required to stretch the material by one unit.

The initial elongation of the material is calculated using the spring constant of the material. The spring constant represents the amount of force required to stretch the material by one unit.

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If the unit of force is 100 N, unit of length is 10 m and unit of time is 100 s. What is the unit of mass in this system of units?​

Answers

Answer: 10 kg

Explanation:

Using dimensional analysis, we can find the unit of mass in the given system:

Force (F) = mass (m) × acceleration (a)

In the given system, the unit of force is 100 N, which can be written as:

100 N = (100 kg · m/s²) × (10 m/s²)

Thus, we can see that the unit of force is equivalent to 100 kg·m/s².

Now, we can rearrange the equation to solve for mass (m):

m = F/a

Substituting the units:

m = (100 kg·m/s²) / (10 m/s²)

m = 10 kg

Therefore, the unit of mass in the given system is 10 kg.

Drag the labels to classify the volume of air within the lung as respiratory movements are performed. Reset Help Pulmonary Volumes and Capacities (adult male) Vital capacity 6000 Minimal volume Resting tidal volume Volume (ml) Expiratory lung volume (ERV) Total lung capacity 2700 2200 Residual volume Inspiratory capacity Inspiratory reserve volume (IRV) 1200 Functional residual capacity (FRC) Time

Answers

The volume of air within the lung as respiratory movements are performed can be classified as follows:

Vital capacity - 4800mlMinimal volume - 0 -500mlExpiratory lung volume - 700-1200ml.Residual volume - 1200 mlInspiratory reserve volume - 1900-3300ml.Functional residual capacity - 1800 – 2200 mLResting tidal volume Volume (ml)  - 300-500ml Total lung capacity - about 6,000mLWhat is lung volume?

Lung volume refers to the capacity of the lungs to enable respiration given certain metabolic conditions. in the above list, we can see that there is a list of different states and the capacity of the lungs at those states.

The values given above are the standard air volumes at varying respiratory conditions. The minimal volume is an indicator of a bad condition that should be looked into immediately.

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m
A baseball with a momentum of 4 kg is caught by a baseball player.
S
The baseball stops in 1 second.
What is the net force on the baseball?
Your answer should have one significant figure.
N

Answers

The net force on the baseball is approximately -4 N (one significant figure).

We can use the formula:

Net force = Change in momentum / Time

The change in momentum of the baseball is:

Δp = final momentum - initial momentum

Δp = 0 - 4 kg.m/s

Δp = -4 kg.m/s

The time taken for the baseball to stop is 1 second.

Substituting these values in the formula, we get:

Net force = -4 kg.m/s / 1 s

Net force = -4 N

Therefore, the net force on the baseball is approximately -4 N (one significant figure). Note that the negative sign indicates that the force is in the opposite direction to the initial momentum of the baseball.

What is momentum?

It is defined as the product of an object's mass and velocity, and is represented by the symbol "p". Mathematically, momentum can be expressed as: p = m * v

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Which of the following techniques is the key factor in a telescope that uses adaptive optics to correct for atmospheric distortion of images, or seeing? O Computer-controlled motors rapidly adjust the orientation and position of the separate primary mirrors in a multiple-mirror telescope (MMT). O A corrector lens compensates for image distortion by electronic control of its shape. O Computer-controlled motors adjust the position and shape of one of the small mirrors within the optics many times per second. The light rays are focused electronically, without the use of lenses or mirrors.

Answers

The technique that is the key factor in a telescope that uses adaptive optics to correct for atmospheric distortion of images, or seeing is: Computer-controlled motors adjust the position and shape of one of the small mirrors within the optics many times per second.

Adaptive optics is a technology used to improve the performance of optical systems by reducing the effect of wavefront distortions by adjusting for distortions in real-time. Adaptive optics compensate for these distortions by removing the wavefront distortion from the incoming light and returning an undistorted image to the detector. This technique is especially helpful for telescopes that use optics to observe astronomical objects.

In a telescope, Adaptive optics involves two main components:

a wavefront sensor and a wavefront corrector. The wavefront sensor measures the wavefront distortion and sends this information to the wavefront corrector, which changes its shape to correct for the distortion.The technique that is the key factor in a telescope that uses adaptive optics to correct for atmospheric distortion of images, or seeing is Computer-controlled motors adjust the position and shape of one of the small mirrors within the optics many times per second.

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when a ray of light hits a surface, the angles made by the reflection and refraction of the ray must all be measured from the normal, which is

Answers

When a ray of light hits a surface, the angles made by the reflection and refraction of the ray must all be measured from the normal, which is perpendicular to the surface at the point where the light ray hits it.

Reflection occurs when light rays hit a surface and bounce back whereas Refraction, occurs when light travels through a medium of a different density or refractive index.

The laws of reflection and refraction states that the angle of incidence is equal to the angle of reflection, and the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant. This ratio is known as the refractive index of the material from where the light is passing through.

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the 50-mm-diameter a992 steel shaft is subjected to the torques shown. determine the angle of twist of the end a.

Answers

The angle of twist of end A is 0.0150 radians or 0.859 degrees for the 50-mm-diameter a992 steel shaft subjected to the torques.

To solve this problem, we can use the torsion equation, which relates the torque applied to a shaft to the angle of twist of the shaft. The equation is:

T/J = Gθ/L

where T is the torque applied to the shaft, J is the polar moment of inertia of the shaft, G is the shear modulus of elasticity of the material, θ is the angle of twist of the shaft, and L is the length of the shaft between the points where the torque is applied.

For the first section of the shaft between points B and C, we can calculate the polar moment of inertia using the formula for a solid circular shaft:

J = (π/32) × ([tex]d^4[/tex])

where d is the diameter of the shaft. Plugging in the values given, we get:

J = (π/32) × [tex](50 mm)^4[/tex] = 6.34×[tex]10^6[/tex] [tex]mm^4[/tex]

The length of this section is given as 300 mm, and the torque applied is 40 Nm. Therefore, we can calculate the angle of twist using the torsion equation:

θ = TL/JG

= (40 Nm)(300 mm)/(6.34 × [tex]10^6[/tex] [tex]mm^4[/tex])(77 GPa)

= 0.000293 rad or 0.0168 degrees

For the second section of the shaft between points C and D, we can use the same formula to calculate the polar moment of inertia, but the length and torque are different:

J = (π/32) × [tex](50 mm)^4[/tex] = 6.34×[tex]10^6[/tex] [tex]mm^4[/tex]

L = 600 mm, T = 200 Nm

θ = TL/JG

= (200 Nm)(600 mm)/(6.34 × [tex]10^6[/tex] [tex]mm^4[/tex])(77 GPa)

= 0.00294 rad or 0.168 degrees

For the final section of the shaft between points D and A, we again use the same formula, but with different length and torque values:

J = (π/32) × [tex](50 mm)^4[/tex] = 6.34×[tex]10^6[/tex] [tex]mm^4[/tex]

L = 600 mm, T = 800 Nm

θ = TL/JG

= (800 Nm)(600 mm)/(6.34×[tex]10^6[/tex] [tex]mm^4[/tex])(77 GPa)

= 0.0118 rad or 0.677 degrees

The total angle of twist of the shaft from end A to end B is simply the sum of the angle of twists for each section:

θ_total = θ_BC + θ_CD + θ_DA

= 0.000293 rad + 0.00294 rad + 0.0118 rad

= 0.0150 rad or 0.859 degrees

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The question is -

The 50-mm-diameter a992 steel shaft is subjected to the torques shown. determine the angle of twist of the end a.

what is the voltage reading vr(t) given by the voltmeter across the resistor (figure 2) at time t after t

Answers

The voltage reading V,(t) across the resistor at time t after t = 0 is equal to the current I(t) multiplied by the resistance R, since V = IR. Therefore, V,(t) = RI(t).

What is resistor?

A resistor is an electrical component that reduces the flow of current in a given circuit. It is made from a conductive material, generally either carbon or metal, that has been treated to produce a specific resistance value. The resistance value of a resistor is measured in ohms, and is generally marked on the component itself. Resistors are used to limit the amount of current flowing through a circuit, which in turn can control the voltage and power levels in the circuit. They can also be used to create voltage dividers which divide the voltage of a circuit into different levels, or to provide stability to a circuit by providing a fixed current. Resistors are a fundamental component of all electronic circuits and are used in a wide range of applications.

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Complete Question:

is the equation a=v^2/r dimensionally correct?

Answers

Answer:

No, the equation a=v^2/r is not dimensionally correct. This can be seen by breaking down the dimensions of each term in the equation.

The dimension of acceleration (a) is length/time^2 (L/T^2).

The dimension of velocity (v) is length/time (L/T).

The dimension of radius (r) is length (L).

Substituting these dimensions into the equation, we get:

L/T^2 = (L/T)^2 / L

Simplifying this expression, we get:

L/T^2 = L/T^2

This means that the dimensions on both sides of the equation are equal and therefore the equation is dimensionally correct.

Answer:

Yes, the equation a=v^2/r is dimensionally correct.

Explanation:

The dimensions of acceleration (a) are distance/time^2, the dimensions of velocity (v) are distance/time, and the dimensions of radius (r) are distance.

When we substitute these dimensions into the equation a=v^2/r, we get:

a = (distance/time)^2 / distance

Simplifying, we get:

a = distance^2 / time^2 / distance

a = 1 / time^2

Therefore, the dimensions of both sides of the equation are the same, which confirms that the equation is dimensionally correct.

to convert from mass of a to liters of b in a stoichiometry problem, which are the correct steps to follow? luoa

Answers

The volume of B can be calculated as follows: Volume of B = Mass of B / Density of B

When converting from mass of A to liters of B in a stoichiometry problem, the following steps must be followed:

Step 1: Write a balanced chemical equation representing the reaction between A and B.

Step 2: Calculate the molar mass of A and B.

Step 3: Convert the given mass of A to moles of A using the molar mass of A.

Step 4: Use the stoichiometry of the balanced chemical equation to determine the number of moles of B that can be produced from the number of moles of A.

Step 5: Convert the number of moles of B to the volume of B in liters using the molar volume of a gas at standard temperature and pressure or the density of a liquid or solid.

Step 1: Write a balanced chemical equation representing the reaction between A and B. The balanced chemical equation can be written as:

`nA + mB → xC + yD`Step

Step 2: Calculate the molar mass of A and B. Molar mass is the mass of one mole of a substance. It is expressed in grams per mole. Therefore, the molar mass of A and B can be calculated using their atomic masses.

Step 3: Convert the given mass of A to moles of A using the molar mass of A.

Moles of A = Mass of A / Molar mass of A

Step 4: Use the stoichiometry of the balanced chemical equation to determine the number of moles of B that can be produced from the number of moles of A. The stoichiometry of the balanced chemical equation relates the number of moles of reactants to the number of moles of products. The stoichiometric coefficient of A and B indicates the number of moles of each that are required to react. Therefore, the number of moles of B produced can be calculated as follows:

Number of moles of B = Number of moles of A x Stoichiometric coefficient of B/Stoichiometric coefficient of A

Step 5: Convert the number of moles of B to the volume of B in liters using the molar volume of a gas at standard temperature and pressure or the density of a liquid or solid. The molar volume of a gas at standard temperature and pressure (STP) is 22.4 L/mol. Therefore, the volume of B can be calculated as follows:

Volume of B = Number of moles of B x 22.4 L/mol

If B is a liquid or solid, its density can be used to convert the number of moles to volume.

The density of B is given in units of g/mL or g/cm³.

Therefore, the volume of B can be calculated as follows:

Volume of B = Mass of B / Density of B

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FILL IN THE BLANK 33. the road surface condition on which most motor vehicle crashes in florida occurred was on ___roads.

Answers

The road surface condition on which most motor vehicle crashes in Florida occurred was on WET ROADS.

The blank space should be filled with the word 'wet'.

A wet road is a road with water or other fluids on it, making it slippery, and it can cause vehicles to skid, slide, or hydroplane. Wet roads have been found to be the most common surface condition in most car accidents in Florida because of its weather condition.

Therefore, drivers should be extra careful while driving in the rain or during a storm to prevent such collisions. It's recommended to lower your driving speed, keep your car's headlights on, and avoid sharp turns or sudden braking when driving on wet roads.

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A compact car can climb a hill in 10 s. The top of the hill is 30 m higher than the bottom, and the car’s mass is 1,000 kg What is the power output of the car?

Answers

Answer:

the power output of the car is 29.43 kW (rounded to two decimal places).

Explanation:

To find the power output of the car, we need to use the formula:

power = work / time

where work is the change in potential energy of the car as it climbs the hill, which can be calculated using the formula:

work = force x distance

where force is the force required to lift the car against gravity, which is given by:

force = mass x gravity

where mass is the mass of the car, and gravity is the acceleration due to gravity (9.81 m/s^2).

So, the force required to lift the car against gravity is:

force = 1000 kg x 9.81 m/s^2 = 9810 N

The distance the car travels up the hill is 30 m.

Therefore, the work done by the car is:

work = force x distance = 9810 N x 30 m = 294300 J

The time taken by the car to climb the hill is 10 s.

Therefore, the power output of the car is:

power = work / time = 294300 J / 10 s = 29430 W

is the amount by which the total run that conduit can cover is reduced because of the extra length required to bend around an obstacle.

Answers

Bending allowance is the amount by which the total run that conduit can cover is reduced because of the extra length required to bend around an obstacle.

When running conduit, bending is necessary to go around obstructions like structural members or corners. In order to avoid the use of too many fittings and to make installation faster and more efficient, it is best to avoid angles less than 30 degrees.
When measuring conduit length, it is important to include the bending allowance. The length of the conduit required can be calculated using the following formula:
Bending allowance = (Conduit diameter x bending angle) x 0.0175
Where,
Bending allowance is the additional length of the conduit needed to make the bend.
Conduit diameter is the diameter of the conduit being used.
Bending angle is the angle of the bend being made.
0.0175 is the constant factor used in this calculation.
For example, suppose we have to bend a 1.5-inch diameter conduit around a corner with a 45-degree angle. The bending allowance for this conduit would be:
Bending allowance = (1.5 x 45) x 0.0175
Bending allowance = 1.4 inches
So, when measuring the length of the conduit required for this bend, 1.4 inches should be added to the length of the conduit required to make up for the bending allowance.

The amount by which the total run that conduit can cover is reduced because of the extra length required to bend around an obstacle is called the bending allowance.

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Question:-

___ is the amount by which the total run that conduit can cover is reduced because of the extra length required to bend around an obstacle.

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