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A student of mass 64.7 kg climbs up the stairs in the Physics Department, with a vertical height change 3.1 metres.

What is the change in gravitational potential energy? Give your answer in Joules, to 2 significant figures.

gpe=mg*deltaHeight

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A student of mass 64.7 kg climbs up the stairs in the Physics Department, with a vertical height change 3.1 metres.What is the

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