Answer the problem. Use GRESA. A 80-kg person walks from the ground to the roof of a 90m tall building. How much gravitational potential energy does she have at the top of the building?​

Aregion is an area of land that has common features. these features can be natural, such as climate or landscape. they can also be artificial, such as language or religion. the xinjiang uyghur autonomous region, above, is an area of china inhabited by uyghurs, a muslim group with ethnic ties to turkish people.

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