object is lowered into a deep hole in the surface of the earth, which of the following must be assumed in regard to its potential energy? cannot tell from the information given increase decrease remain constant

Q: 2 A 222 kg weather rocket reaches its maximum height 32 km above the Earth's surface Determine: a.…

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Q: An 80 kg object is dropped from rest from a height of  25 meters above the ground. Use the concept…

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Q: A ball of mass m sits atop a table. The tabletop is a distance d above the ground. The gravitational…

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Q: The skateboarder weighs 75 kilogram. Calculate the potential energy of the skateboarder sliding on…

A: potential energy is, U=mgh

Q: A 2.0 lb. rock and a 20.0 lb. rock are dropped from rest at 50.0 m above the ground. Ignoring air…

A: Mass of rock 1: m1 = 2.0 lb = 0.907 kg Mass of rock 2 : m2 = 20.0 lb = 9.07 kg Height of building: h…

Q: Planet Apes has an acceleration due to gravity of 2.0m/s2. What is the potential energy of a 1.0-kg…

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Q: The 1630-kg car has a velocity of 34 km/h up the 11-percent grade when the driver applies more power…

A: GivenMass of car, m=1630 kgInitial velocity of car, u=34 km/hFinal velocity of car, v=56 km/hTime…

Q: An object of mass 18 kg is at a certain height above the ground. If the potential energy of the the…

A: Given data :                        Mass of object    =     m                    Potential energy…

Q: "When an object moves upward, the change in potential energy will be negative because the…

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Q: A0.118-kg ball is thrown upward with an initial speed of 27 m/s , Calculate the gravitational…

A: mass of ball (m) = 0.118 kg Initial upvards velocity (v) = 27 ms

Q: An astronaut on the moon (where g = 1.6 m/s^2) drops a 20 kg boulder from a height of 30 m…

A: Given data: Mass of the boulder is, m = 20 kg Acceleration due to gravity on the surface of the moon…

Q: An object 'A' with a mass of 4 kg is lifted vertically 4 m from the ground level; another object 'B'…

A: Given:- Mass of A is mA=4 Kg A is raised to a height of hA=4 m Mass of B is mB=2 Kg B is raised to a…

Q: To make a pendulum, a 410 g ball is attached to one end of a string that has a length of 1.8 m and…

A: Given that -- m = .41 kg length of string  L = 1.8 m initial angle between the string and vertical =…

Q: An object of mass 6 kg is at a certain height above the ground. If the potential energy of the the…

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Q: Two divers are standing on two different diving boards one next to the other. The diver on the…

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Q: Two identical marbles are dropped in a classroom. Marble A is dropped from 1.00 m, and marble B is…

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Q: As an object is lowered into a deep hole in the ground, which of the following assumptions must be…

A: The gravitational potential inside the Earth’s surface can be represented as, Here, G, M, R, and r…

Q: A ball rolls down an inclined track and around a vertical loop 40 cm in diameter that is built into…

A: diameter of the loop (d) = 40 cm = 0.4 m Energy expended in work against friction = half the energy…

Q: An object of mass 12 kg is at a certain height above the ground. If the potential energy of the the…

A: Given data :                     Potential energy    =   P•E              Acceleration due to…

Q: A stone of mass 80 g is dropped onto an unstrained vertical spring with a spring constant k = 0.8…

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Q: A car of mass 1500 kg is initially travelling at a speed of 10 m/s. The driver then accelerates to a…

A: At intial  Velocity of the car = 10m/s Mass of the car =1500 kg At final  Velocity of the car =25…

Q: A body is falling freely under the action of gravity alone in vacuum. Which of the following…

A: To determine: The correct option.

Q: Three different objects, all with different masses, are initially at rest at the bottom of a set of…

A: height of each step = d m1 = 4.6 m m2 = 1.71 m m3 = m

Q: Ball 1 is thrown to the ground with an initial downward speed; ball 2 is dropped to the ground from…

A: Given: mass of ball 1 : m1initial speed of ball 1 : u1mass of ball 2 : m2initial speed of ball 2 :…

Q: A cannonball has a mass of 13 kg and is fired vertically upwards from the surface of the Earth to a…

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Q: An object with a mass 100 kg decrease in kinetic energy of 500 kJ and an increase in potential…

A: Given Data: The mass of an object is, m=100 kg The decrease in kinetic energy is, ∆K·E=-500 kJ The…

Q: A body at rest in a system is capable of doing work if: O the potential energy of the system is…

A: Solution-: When a body is in rest then it has zero kinetic energy.  Now we know that total energy of…

Q: Pilings are driven into the ground at a building site by dropping a 2150 kg object onto them. What…

A: Given Data: The mass of an object is, m=2150 kg The initial height above the ground is, h1=20.0 m…

Q: A 2.5kg ball is about to roll off the edge of a 1.7m tall table. What is its current potential…

A: We know that, Potential Energy :PE = m x g x h Where,m = Mass (2.5kg) g = Acceleration of…

Q: Three different objects, all with different masses, are initially at rest at the bottom of a set of…

A: Data given - M1 = 4.90m M2 = 1.46 m M3 = m

Q: "When an object moves downward, the change in potential energy will be positive because the…

A: When an object moves downward, though its gravitational acceleration is positive, its potential…

Q: A body at rest in a system is capable of doing work if: the potential energy of the system is…

A: solution as

Q: A 0.267 kg ball is thrown straight up from 2.33 m above the ground. Its initial vertical speed is…

A: Given, a mass m = 0.267 kg ball is thrown straight up from h = 2.33 m above the ground. Its initial…

Q: 2. A 2.0 lb. rock and a 20.0 lb. rock are dropped from rest at 50.0 m above the ground. Ignoring air…

A: Given, mass of rock  m1 = 2 lb mass of rock m2 = 20 lb We know the expressin for force is  F=ma…

Q: An object of mass 4 kg is at a certain height above the ground. If the potential energy of the the…

A: Given data :                         Potential energy    =     P•E                         Mass  of…

Q: An object of mass 6 kg is at a certain height above the ground. If the potential energy of the the…

A: Introduction :  In this question we are provided with value of acceleration due to gravity , mass…

Q: Three different objects, all with different masses, are initially at rest at the bottom of a set of…

A: Given that: m1=4.60 mm2=1.71mm3=m

Q: An object of mass 2 kg is launched at an angle of 30o above the ground with an initial speed of 40…

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Q: An egg is released from rest from the roof of a building and falls to the ground. Its fall is…

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Q: Object A (5 kg) is a certain height above the ground. Object B (5 Kg) is twice as high as Object A.…

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Q: A person drops a brick from the top of a building. The height of the building is 400.0 m and the…

A: a. the potential energy at the top of the building is PE=mgh=1.7 kg9.8 m/s2400 m=6664 J

Q: During the lift off of a spacecraft, it gains speed and increases its kinetic energy immediately.…

A: As the planet moves away from earth surface then it's gravitational potential energy continuously…

Q: A 54 kg student carrying an 11 kg backpack climbs up 76 steps (each step is 18 cm high) to the 4th…

A: The answer is below

Q: A 20 kg box is dropped from the roof of a 10-storey building ( 4 meters / floor). Determine the…

A: Given that, The mass of a box, m = 20 kg It is dropped from the roof of a 10-storey building (4…

Q: A ball is thrown upward in the air. Neglect air resistance. As it travels upward, a)  Both its…

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Q: the net work done on an object is negative, then the kinetic energy of the object: a. is zero b.…

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Q: The body is thrown vertically upward at a speed of 20 m / s. At what height the kinetic energy of…

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Q: Determine the work required (in Joules) to accelerate a Ford Mustang (mass ≈ 1600 kg ) from rest to…

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Q: A pendulum bob with a mass of 0.300 kg is attached to a 1.5 m long string. As the pendulum bob…

A: Gravitational potential energy= mgh where h= vertical distance of body from a reference level where…

Q: Gabbie’s gravitational potential energy is 1870 J as she sits 2.20 m above the ground in a sky…

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