Acrane does 62,500 joules of work to lift a boulder a distance of 25.0 meters. how much did the boulder weight

This question is worth 54 points ! rock falls from a ledge to the ground what energy conversion occurs during this process a potential to kinetic b kinetic to potential c thermal to mechanical d chemical to mechanical

According to social exchange theory, altruistic behaviors benefit the individual who performs them. t/f

Astone weighing 1.5 kilograms is resting on a rock at a height of 20 meters above the ground. the stone rolls down 10 meters and comes to rest on a patch of moss. the gravitational potential energy of the stone on the moss is joules.