Assume the Earth to be a sphere of uniform density. Calculate: a. its moment of inertia b. its rotational kinetic energy c. Suppose that these energy could be harnessed for our use. For how long could the Earth supply 1.0 kW of power to each of the 7.8 x 10° persons on Earth?

Assume the Earth to be a sphere of uniform density. Calculate: a. its moment of inertia b. its rotational kinetic energy c. Suppose that these energy could be harnessed for our use. For how long could the Earth supply 1.0 kW of power to each of the 7.8 x 10° persons on Earth?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter10: Rotational Motion And Angular Momentum

Section: Chapter Questions

Problem 23PE: (a) Calculate the rotational kinetic energy of Earth on its axis. (b) What is the rotational kinetic...

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Question

1. Assume the Earth to be a sphere of uniform density. Calculate:
a. its moment of inertia
b. its rotational kinetic energy
c. Suppose that these energy could be harnessed for our use. For how long
could the Earth supply 1.0 kW of power to each of the 7.8 x 10° persons on
Earth?

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