Question (a) How much gravitational potential energy (relative to the ground on which it is built) is stored in an Egyptian pyramid, given its mass is about 5 ✕ 109 kg and its center of mass is 25.0m above the surrounding ground? (b) What is the ratio of this energy to the daily food intake of a person (1.2 ✕ 107 J)?
Question
(a) How much gravitational potential energy (relative to the ground on which it is built) is stored in an Egyptian
pyramid, given its mass is about 5 ✕ 109 kg and its center of mass is 25.0m above the surrounding ground?
(b) What is the ratio of this energy to the daily food intake of a person (1.2 ✕ 107 J)?
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