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(a) Calculate the rotational kinetic energy of Earth on

Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli ISBN: 9780130606204 3

Solution for problem 23PE Chapter 10

Physics: Principles with Applications | 6th Edition

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Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli

Physics: Principles with Applications | 6th Edition

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Problem 23PE

(a) Calculate the rotational kinetic energy of Earth on its axis. (b) What is the rotational kinetic energy of Earth in its orbit around the Sun?

Step-by-Step Solution:

Step-by-step solution Step 1 of 4 The rotational kinetic energy of the Earth is calculated as, Here is the moment of inertia of the Earth and is the angular velocity of the Earth, Step 2 of 4 (a) The moment of inertia of the Earth is calculated same as a solid sphere, Here is the mass of the Earth, is the radius of the Earth. Substitute, As, the earth revolves radians every 24 hours, so, the angular velocity of the Earth is calculated as, The rotational kinetic energy of the Earth is, Substitute, for and for . So, the rotational kinetic energy of the Earth is .

Step 3 of 4

Chapter 10, Problem 23PE is Solved
Step 4 of 4

Textbook: Physics: Principles with Applications
Edition: 6
Author: Douglas C. Giancoli
ISBN: 9780130606204

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