The axis of Earth makes a 23.5° angle with a direction

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

Problem 48PE Chapter 10

Physics: Principles with Applications | 6th Edition

  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli

Physics: Principles with Applications | 6th Edition

4 5 0 299 Reviews
12
4
Problem 48PE

The axis of Earth makes a 23.5° angle with a direction perpendicular to the plane of Earth’s orbit. As shown in Figure 10.41, this axis precesses, making one complete rotation in 25,780 y. (a) Calculate the change in angular momentum in half this time. (b) What is the average torque producing this change in angular momentum? (c) If this torque were created by a single force (it is not) acting at the most effective point on the equator, what would its magnitude be?

Step-by-Step Solution:

Step-by-step solution Step 1 of 9 The change in angular momentum in half its time is calculated as, Here is the angular momentum of the earth about its axis, is the moment of inertia of the Earth and is the angular velocity of the axis. Step 2 of 9 (a) Refers to the figure 10.41 provided in the textbook. The formula to find the change in momentum is, Here is the change in angular momentum. Step 3 of 9 Substitute for , Therefor e, the change in angular momentum is . Step 4 of 9 (b) Convert the time in second, Step 5 of 9 Therefore, the change in time is,

Step 6 of 9

Chapter 10, Problem 48PE is Solved
Step 7 of 9

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

×
Log in to StudySoup
Get Full Access to Physics: Principles With Applications - 6th Edition - Chapter 10 - Problem 48pe

Forgot password? Reset password here

Join StudySoup for FREE
Get Full Access to Physics: Principles With Applications - 6th Edition - Chapter 10 - Problem 48pe
Join with Email
Already have an account? Login here
Reset your password

I don't want to reset my password

Need help? Contact support

Need an Account? Is not associated with an account
Sign up
We're here to help

Having trouble accessing your account? Let us help you, contact support at +1(510) 944-1054 or support@studysoup.com

Got it, thanks!
Password Reset Request Sent An email has been sent to the email address associated to your account. Follow the link in the email to reset your password. If you're having trouble finding our email please check your spam folder
Got it, thanks!
Already have an Account? Is already in use
Log in
Incorrect Password The password used to log in with this account is incorrect
Try Again

Forgot password? Reset it here