Physics

Physics, 07.11.2019 07:31, maysahdabest

Acamera weighing 10 n falls from a small drone hovering 20 m overhead and enters free fall. what is the gravitational potential energy change of the camera from the drone to the ground if you take a reference point of (a) the ground being zero gravitational potential energy? (b) the drone being zero gravitational potential energy? what is the gravitational potential energy of the camera (c) before it falls from the drone and (d) after the camera lands on the ground if the reference point of zero gravitational potential energy is taken to be a second person looking out of a building 30 m from the ground?

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Physics, 06.07.2019 00:10, tatemcgee

Acamera of weight 8.9 newtons is dropped from a drone at a height of 18.6 meters and enters free fall. assuming no air resistance, what is the final velocity of the camera a moment before it shatters on the ground?

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Physics, 18.10.2019 17:30, pinkpearl20

Acamera weighing 10 n falls from a small drone hovering 20 m overhead and enters free fall. what is the gravitational potential energy change of the camera from the drone to the ground if you take a reference point of (a) the ground being zero gravitational potential energy? (b) the drone being zero gravitational potential energy? what is the gravitational potential energy of the camera (c) before it falls from the drone and (d) after the camera lands on the ground if the reference point of zero gravitational potential energy is taken to be a second person looking out of a building 30 m from the ground?

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Physics, 10.11.2019 04:31, kmisure

I). mechanical energy is the sum of potential energy and kinetic energy in an object that is used to do work. ii). the principle of the conservation of mechanical energy states that the mechanical energy in a system remains constant as long as the only forces acting are conservative. iii). frictional force is a non-conservative force. which of the following statement below is false? a) for the motion of a cart on a frictionless incline plane, the magnitude of the change in kinetic energy equals the magnitude of the change in gravitational potential energy b) for the motion of a cart on an incline plane having a coefficient of kinetic friction of 0.5, the magnitude of the change in kinetic energy equals the magnitude of the change in gravitational potential energy c) assuming a constant gravitational potential energy for a cart, the work-done by a net force on the cart equals the change in its kinetic energy d) in an ideal free fall, the magnitude of the change in gravitational potential energy equals the magnitude of the change in gravitational potential energy

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Physics, 21.11.2019 05:31, kdcupcake8004

Acamera weighing 21 n falls from a small drone hovering 28 m overhead and enters free fall. what is the gravitational potential energy change (in j) of the camera from the drone to the ground if you take the following reference points?

Answers: 2

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