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(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 7 x 10° kg and its center of mass 39.0 m above the surrounding ground? (b) What is the ratio of this energy to the daily food intake of a person (1.2 x 10' 1)? :1

(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 7 x 10° kg and its center of mass 39.0 m above the surrounding ground? (b) What is the ratio of this energy to the daily food intake of a person (1.2 x 10' 1)? :1

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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(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 7 x 10° kg and its center of mass is 39.0 m above the surrounding ground? (b) What is the ratio of this energy to the daily food intake of a person (1.2 × 10' J)? :1 Additional Materials A Deoding
Transcribed Image Text:(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 7 x 10° kg and its center of mass is 39.0 m above the surrounding ground? (b) What is the ratio of this energy to the daily food intake of a person (1.2 × 10' J)? :1 Additional Materials A Deoding
Expert Solution
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(a) The gravitational potential energy of the Pyramid can be written as

PE=mghPE=7×109kg9.8 m/s239.0 mPE=2.68×1012J                                                                  1

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