Asked by lisa
Wally now lift the box of the floor and put it on a shelf. Does he doing any work? If not why? If so .what energy change is accurring?
Answers
Answered by
Elena
The change of potential energy is
ΔPE =mgΔh
Work W = ΔPE
ΔPE =mgΔh
Work W = ΔPE
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