(Answered) Potential energya how much gravitational potential energy

Economics

Potential Energy

a) How much gravitational potential energy (in J) (relative to the ground on which it is built) is stored in an Egyptian pyramid, given its mass is about 8 ? 10⁹ kg and its center of mass is 45.0 m above the surrounding ground?

(answer in J)

(b) What is the ratio of this energy to the daily food intake of a person (1.2 ? 10⁷ J)?

(ratio versus :1)

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