(a) How much gravitational potential energy (in J) (relative to the ground on which it is built) is stored in an Egyptia

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(a) How much gravitational potential energy (in J) (relative to the ground on which it is built) is stored in an Egyptia

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(a)
How much gravitational potential energy (in J) (relative to theground on which it is built) is stored in an Egyptian pyramid,given its mass isabout 7 ✕ 109 kg and its centerof mass is 31.0 m above the surrounding ground?
J
(b)
What is the ratio of this energy to the daily food intake of aperson (1.2 ✕ 107 J)?
:1
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