A microwave antenna with a mass of 80 kg sits atop a tower that is 50 m tall. What is the antennas potential energy?

Q: What is the kinetic energy of a 110 kg object that is moving with a speed of 12.5 m/s?

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Q: What is the Kinetic Energy of a 1200 kg object that is moving with a speed of 24 m/s?

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Q: The unit kilowatt-hour is a measure of(a) the rate at which energy is transformed.(b) power.(c) an…

A: kilowatt hour

Q: A laptop computer consumes about 40 watts of electricity per hour when operating. At $0.20 per…

A: Power of laptop = 40 watt Time = 10 hours  Cost of electricity = $0.20 per kilowatt hour

Q: What is the kenitic energy of a 25kg object moving at 6.0 m/s

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Q: What is the kinetic energy of a 12 kg object with a velocity of 10 m/s? *

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Q: What is the potential energy of a 5kg bowling ball that is held 8.9 meters above the ground

A: In this question we have to find the potential energy of the body. Please give positive feedback if…

Q: An object has a kinetic energy of 88 J and a mass of 45 kg , how fast is the object moving?

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Q: A 200 kg boulder is sitting on top of a 10 m high hill.what is the boulder's gravitational potential…

A: Formula of gravitational potential energy is,  E=mgh Given : Mass m=200kg Height h=10m Acceleration…

Q: A 5 kg object is moving with a speed of 4 m/s at a height of 2m . What is the kinetic energy?

A: Given Data : The mass of the object is given as m = 5Kg. The speed of the object is given as v = 4…

Q: What is the velocity of a 1,500 kg car if its kinetic energy is 350 kJ?

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Q: A ball of mass 200 g is moving with a speed of 10 m/s. What is its kinetic energy in joules?

A: The kinetic energy if the ball is given by the equation

Q: A lightbulb has an average power output of 125 watts. If the lightbulb is left on for an hour, what…

A: Given: The power output of the lightbulb is 125 W. The running time of the bulb is 1 hour.…

Q: As it orbits the Earth, the 11,000 kg Hubble Space Telescope travels at a speed of 7,900 m/s and is…

A: Kinetic energy is, KE=12mv2=1211000 kg7900 m/s2=3.43×1011 J

Q: A meteor with the mass 1.4×10^8 kg hits Earth at 12km/s. What is the kinetic energy delivered to the…

A: The given values are,

Q: What is the approximate cost of operating a 65 W light bulb for 3.0 h per day for 1 week, if the…

A: The given values are, P=65 Wthour/day=3.0 h/daytday=1 week=7 daysrate=14 cents/kWh

Q: A 4.0 kg bowling ball is rolling on the lane floor at 10.0 m/s. What is the gravitational potential…

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Q: What is the kinetic energy of a 4 kilogram cat runnig at 5 m/sec ?

A: given that,mass of cat, m=4 kgvelocity of cat, v=5 ms

Q: the gravitational potential energy of a 20 kg box that is at 5m above the ground is?

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Q: A ball with 100 J of PE is released from a height of 10 m. What will be the KE of the ball at 5 m?

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Q: How much work is done by a force of 10 N in moving an object through a distance of 1 m in the…

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Q: How much work is done to get a 60 kg object to go from 5 m/s to 15 m/s?

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Q: What is the kinetic energy of a .5 kg toy car moving at a rate of 1.4 m/s

A: Given that, Mass of the toy car (m)= 0.5 kg Velocity of the toy car (v)= 1.4 m/s We know that,…

Q: A 3 kg history textbook is placed on a 2 m high desk. How large is the gravitational potential…

A: gravitational potential energy of earth and book system is given as U=MgH here M is mass g is…

Q: What is the energy required to accelerate a 1655 kg car from rest to 25 m/s?

A: According to work energy theorem, the net work done on an object is equal to change in kinetic…

Q: What is the wattage of a light bulb that uses 35 J of energy in 7 s?

A: given,  Energy = 35 J  time = 7 s  Therefore, the wattage of the light bulb               =…

Q: How much energy does a 100W light lamp produce per hour? How fast does a person of 70 kg have to run…

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Q: An object has a kinetic energy of 25 J and a mass of 34 kg , how fast is the object moving?

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Q: what is the kinetic energy of a 25kg object moving at a velocity of 5m/s?

A: Here, we need to find the value of kinetic energy of a moving body.  The formula used for the…

Q: A 4.2 kg box is lifted up to a height of 2 m. What is the gravitational potential energy (GPE)? *

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Q: How much work is done by a force of 12 N in moving an object through a distance of 9 m in the…

A: GivenForce applied on object, F=12 NDistance covered by object, d=9 m

Q: If acceleration due to gravity is 15 m/ s² , what will be the potential energy of a body of mass 3…

A: Given, Acceleration due to gravity, g = 15 ms2 mass of the object, m = 3 kg height above the…

Q: What is the gravitational potential energy of a 450 kg car at the top of a 25 m parking garage?

A: The expression for gravitational potential energy is, Ugrav=mgh          (I)          m=mass,g=9.8…

Q: how much energy does a 5 kg ball have when it is 2 m above the ground and it is moving at 4 m/s?

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Q: A book on a shelf has potential energy of 200J and two times the mass of a book next to it. What is…

A: Given data The gravitational potential energy for the book is given as PEh = 200 J. The…

Q: How high would a 4.8 kg squirrel has to climb a tree to have a gravitational potential energy of 52…

A: GivenGravitational potential energy = 52 JMass of squirrel (m) = 4.8 kg

Q: .What is the Kinetic Energy of a 100 kg object that is moving with a speed of 12.5 m/s?

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Q: What is the gravitational potential energy of a 5.0 kg object that has been raised 12 m above the…

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Q: A man weighing 73.4 kg is standing at the 4th floor of a building, which is 15 meters above the…

A: Mass of the person m=73.4 kg, height at which he is standing from the ground h=15 m and acceleration…

Q: If a 1000 kg body is moving at 5 m/s, what is the kinetic energy?

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Q: An object of mass 4 kg has a speed of 9 m/s and moves a distance of 7 m. What is its kinetic energy…

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Q: A 30 kg boulder is on top of an 80 m cliff. If the rock falls, how much is its potential energy when…

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Q: A laptop computer consumes about 40 watts of electricity per hour when operating. At $0.20 per…

A: Given data:  Power (W) = 40 W = 0.040 kW Time (t) = 10 h Electrical cost = $0.20 per kWh Required:…

Q: What is the potential energy of a 10 kilogram cube 500 meters above the ground?

A: The equation for the potential energy is Here, m is the mass of the cube, g is the acceleration due…

Q: An overhead tank containing 1,500 L of water is placed on top of the roof of a building. The height…

A: Given data:   A overhead water tank  Volume (V) = 1500 L Height (h) = 10 m Required: The potential…

Q: What is the kinetic energy of a 0.43-kg soccer ball kicked  at  36.5 m/s?

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Q: What is kilowatt-hour?

A: Kilowatt-hour is a unit of electricity.  It is known that unit of power is watt and kilowatt is 1000…

Q: What is the Gravitational Potential energy of a hand sanitizer with a mass of 0.15kg that is mounted…

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Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.