Remember PE- mgh Solve the probtems below 1. A cart at the top of a 200 m hil has a mass of 60 kg. What is the cart's gravitational potentiel energy? KE mv ANSWER

Q: A 45.0 kg skater is skating down a hill on roller blades at à špêed of m/s. What is the kinetic…

A: Given data : Speed=V Mass=m   To find : Kinetic energy of skater

Q: A boy exerts 10N force to push a box 5m along a level surface in 10s. How much power is used by the…

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Q: A 10,000 kg object is traveling at 20m/s. If it stops in 5s, what is the power output of the breaks?

A: Given data The mass of the object is given as m = 10,000 kg. The velocity of the object is given as…

Q: What is the amount work that is done by lifting 90 kg stone block from a small piller that is 1.0 m…

A: The mass of the stone (m) = 90 kg The height of the stone is lifted (h) = 1m And the distance of the…

Q: The moon has a mass of 7.348 X 1022 kg and is 384.4 X 105 km from the Earth, which has a mass of…

A: Let mm be the mass of moon, me be the mass of earth, r be the distance between earth and moon, and G…

Q: a force of 5 punds compresses a 15 inch spring a toatl of 3 inches how much work is done in…

A: Given data The magnitude of the force is Fs = 5 pounds The compression in the spring is x = 3 inch…

Q: It takes a force of 35.17 Newtons to stretch a 34-cm spring to 81-cm and hold it there. How much was…

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Q: A roller coaster is moving at 10 m/s at the top of the first hill (h= 63 m). Ignoring friction and…

A: Concept  Apply work energy theorem, Change is Potential Energy=Gain in Kinetic energy

Q: What is its potential energy at this position?

A: Given  Mass = m = 10 kg  Height = h = 2m  Calculate = potential energy = P

Q: A personal watercraft and rider have a combined mass of 378 kg. What is their kinetic energy (in J)…

A: Given data, Total combined mass of watercraft and rider , m = 378 kg velocity of watercraft and…

Q: WorkA gainsGt ravity Compute the work W against the earth's gravitational field required to move a…

A: R=Radius of Earth=6371000 mM=Mass of Earth=5.972×1024 kgm=Mass of satellite=600 kgh1=Initial…

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 current total mechanical energy of 80-kg skydiver whose speed is 70 m/s at an altitude…

A: solution as

Q: The potential energy of a girder, after being lifted to the top of a building, is 5.17 × 10⁵ ft lb.…

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Q: LA car with a mass of 2,000 kg drives to the top of a 100-meter hill in 15.0 seconds. Find the…

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Q: ctice Problems 1. TA spring has a natural length of 14 ft. If a force of 500 lbs is required to keep…

A: Dear student The work done by spring force is expressed as: W = 12K(xf2-xi2) Here, xi = Initial…

Q: a shot putter hrows a 6kg shot with a final velocity of 7m/s. What is the kinectic energy of the…

A: Given that,  A shot putter throws a 6 kg shot with a final velocity of 7 m/s Mass  = 6 kg Velocity =…

Q: A person goes up a flight of stairs in 20 s. If the person weighs 600 N, and the vertical height of…

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Q: Newton's law of universal gravitation is represented by F= G* Mm/ T where F is the gravitational…

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Q: Velocity is 30 m/s and mass is 60 kg. What is  kinetic energy.

A: Dear student The kinetic energy is defined as : K = 1/2 mv2

Q: Calculate the gravitational potential energy of a 9.50 kg mass (a) on the surface of theEarth and…

A: Step 1Gravitational potential energy is the energy possed by an object because of the gravitational…

Q: If a box having a weight of 100 N is kept at a height of 20 m , calculate its Gravitational…

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Q: An object with mass 99 kg is moving at the velocity of −3.6 m/s. What is its kinetic energy in the…

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Q: A car of mass 2400 The drives with a velocity such that it has a kinetic energy of 400 Btu. Find the…

A: The mass of the car m=2400lbm Let take  778.17(ft lbf)/Btu 32.174(lbm ft)/(lbfs^2)

Q: Using energy methods, calculate the speed of the sphere when it is 0.100 m above the sheet. Fynress…

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Q: The Elf on the Shelf has mass 0.500 kg and is sitting on a shelf some height y above the ground. If…

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Q: Compute potential energy Mass of box-5.5 kg Raised to height=2 m Take g=10 m/s2

A: We have a mass of box m=5.5 kg which is raised to a height h=2 m. The box will experience a…

Q: A 2 kg ball is held 1.5 m above the ground. How mugh gravitational energy does it have?    In…

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Q: Abox is moved using 200 N of force over a distance of 15 m. If the box is moved in 1.4 seconds, how…

A: Power is equal to the rate of work done with respect to time.So if W amount of work is done within…

Q: What is the gravitational potential energy of a 20 kg sledgehammer when it is lifted 3 m in the air?…

A: Given data:   Mass (m) = 20 kg Height (h) = 3 m Required: The gravitational potential energy

Q: A 1,200 watt motor bike can move at a maximum speed of 30 m/s. How much force does the motor exert?

A: Given data:  Power (P) = 1,200 W Maximum speed (v) = 30 m/s Required: Force (F)

Q: Calculate the potential energy of a ball having mass of 10 lbs on top os Stinson building at a…

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Q: How much energy in terms of U is stored when spring is compress twice as much?

A: Given information: The compression in the spring = x0 The potential energy stored in the spring = U0

Q: An ideal spring of negligible mass is 12,00 cm long when nothing is attached to ît, When you hang a…

A: Given: The natural length of the spring is 12 cm. The final length of the spring is 13.4 cm due to…

Q: What is the kinetic energy(in hpjof a 1,860 lb body traveling at 77 ft/sec.

A: Given data: Mass of the body, m=1860 lb velocity of body, v=77 ft/sec Our  question is to find the…

Q: What is the horsepower of a 1,500.0 kg car that can go to the top of a 371.0 m high hill in exactly…

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Q: A 3 kg mass falls a distance of 7.87 m to the ground. What was the object’s change in gravitational…

A: Potential energy = mgh m= 3kg h= 7.87 m

Q: Show that the gravitational potential energy of an object of mass at height on Earth is given by PEg…

A: Given: The mass of the object is m. The height of the object is h. The acceleration due to gravity…

Q: A 15N force is applied to a spring with a spring constant 300N/m. How much work was required to…

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Q: es a force of 34.92 Newtons to stretch a 27-cm spring to 83-cm and hold it there. How much was the…

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Q: what is the answer for this qustion?  pleas show work for all steps.

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Q: A body travels at a velocity of 8 cm/min. What is its kinetic energy in J/kg?

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Q: woel 10 m 3 m A B

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Q: An asteroid was discovered. It is estimated to have a mass of 2.14 x 1021 kg and is moving at a…

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Q: A roller coaster has 800,000 Joules of kinetic energy and is moving aith a sneed of 40 m/s. What is…

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Q: ) How much work is done when a 50N a Floor pushed along distance 10 m?

A: Given data :- Force F = 50 N displacement d = 10 m