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(a) What is the angular momentum of the Moon in its orbit

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

Solution for problem 37PE 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 37PE

(a) What is the angular momentum of the Moon in its orbit around Earth? (b) How does this angular momentum compare with the angular momentum of the Moon on its axis? Remember that the Moon keeps one side toward Earth at all times. (c) Discuss whether the values found in parts (a) and (b) seem consistent with the fact that tidal effects with Earth have caused the Moon to rotate with one side always facing Earth.

Step-by-Step Solution:

Step-by-step solution Step 1 of 6 The orbital angular momentum of the moon of mass in its orbit around the Earth of radius is calculated as, Here, is the moment of inertia of the Moon in its orbit around the earth and is the angular speed of the moon revolving around the Earth. Recall that the moment of inertia of the moon revolving around the earth is, Replace with in . Step 2 of 6 (a) The Moon takes time (T ) of 27.3 days to complete its revolution. So, the angular velocity is calculated as, Substitute 27.3 days for T . Su bstitute for M, for r and for in formula for angular momentum . Hence, the angular momentum of moon is . Step 3 of 6 (b) The moon takes almost 27.3 days to rotate on its own axis, since the rotational period is exactly the same as the orbital period, so the same portion of the moon is always facing the earth. So, the angular velocity for rotation of moon about its own axis is equal to revolution of moon around Earth. Now the angular momentum of the moon rotating on its own axis is calculated as, Here, is the moment of inertia of the Moon revolving around the Earth and is the angular velocity of the Moon rotating on its own axis. The moment of inertia of the moon is calculated as, Here, is the radius of the Moon. Substitute for in formula for angular momentum. Substitute for , for and formula for angular momentum. The angular momentum of moon around its axis is

Step 4 of 6

Chapter 10, Problem 37PE is Solved
Step 5 of 6

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

The answer to “(a) What is the angular momentum of the Moon in its orbit around Earth? (b) How does this angular momentum compare with the angular momentum of the Moon on its axis? Remember that the Moon keeps one side toward Earth at all times. (c) Discuss whether the values found in parts (a) and (b) seem consistent with the fact that tidal effects with Earth have caused the Moon to rotate with one side always facing Earth.” is broken down into a number of easy to follow steps, and 76 words. Physics: Principles with Applications was written by and is associated to the ISBN: 9780130606204. Since the solution to 37PE from 10 chapter was answered, more than 463 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Physics: Principles with Applications, edition: 6. The full step-by-step solution to problem: 37PE from chapter: 10 was answered by , our top Physics solution expert on 03/03/17, 03:53PM. This full solution covers the following key subjects: EARTH, moon, momentum, angular, its. This expansive textbook survival guide covers 35 chapters, and 3914 solutions.

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(a) What is the angular momentum of the Moon in its orbit

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