Answer to Question #222091 in Physics for Wamashudu

Question #222091
During the construction of a high rise building, a 40-kg block is vertically lifted 20 meters from the surface of the earth. To one significant figure, what is the change in the gravitational potential energy of the block?
1
Expert's answer
2021-08-02T08:41:57-0400

The change is


"\\Delta E=mgh=40\u00b79.8\u00b720=800\\text{ J}."


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