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 4 ✕ 109 kg and its center of mass is 19.0 m above the surrounding ground?

Gravitational potential energy,

Explanation:

Mass of an Egyptian pyramid,

It is placed 19 m above the surrounding ground, h = 19 m

We need to find the gravitational potential energy store in the pyramid. This energy is possessed by an object due to its position. It is given by :

So, the gravitational potential energy store in the pyramid is . Hence, this is the required solution.

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