Physics

Physics, 23.07.2019 22:00, Kalij13

How much potential energy does a 1kg mess have 10m off the ground?

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Physics, 12.07.2019 19:50, afifakiran5226

Abrick is dropped from rest from the top of a building through air (air resistance is present) to the ground below. how does the brick's kinetic energy just before reaching the ground compare with the gravitational potential energy at the top of the building? set zero height at the ground level. the comparison cannot be made since the information of air resistance is not given. kinetic energy just before reaching the ground < gravitational potential energy at the top of the building kinetic energy just before reaching the ground = gravitational potential energy at the top of the building kinetic energy just before reaching the ground > gravitational potential energy at the top of the building

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Physics, 23.09.2019 19:10, brcribb

When you are running, there is friction between your feet and the ground and air resistance between your body and the air. where does the extra energy that keeps you moving come from? oa) kinetic energy ob) chemical potential energy oc) potential energy of springs od) gravitational potential energy

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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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Biology, 22.10.2019 21:00, xojade

Acrane lifts a 100-kg log at a height of 10 meters above the ground and gains a certain amount of potential energy. how much potential energy would it possess if it is lowered 5 meters below? a. the same potential energyb. half as much potential energyc. twice as much potential energyd. four times as much potential energy

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