Physics (5th Edition)
5th Edition
ISBN: 9780321976444
Author: James S. Walker
Publisher: PEARSON
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Textbook Question
Chapter 10, Problem 45PCE
Predict/Explain The minute and hour hands of a clock have a common axis of rotation and equal mass. The minute hand is long thin and uniform; the hour hand is short, thick, and uniform (a) Is the moment of inertia of the minute hand greater than, less than, or equal to the moment of inertia of the hour hand? (b) Choose the best explanation from among the following:
- I. The hands have equal mass and hence equal moments of inertia
- II. Having mass farther from the axis of rotation results in a greater moment of inertia
- III. The more compact hour hand concentrates its mass and has the greater moment of inertia.
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Physics (5th Edition)
Ch. 10.1 - Rank the following systems (A, B, C, D) in order...Ch. 10.2 - An object at rest begins to rotate at t = 0 with...Ch. 10.3 - Disk 1 has a radius r and rotates with an angular...Ch. 10.4 - In a popular pirate movie, two pirates find...Ch. 10.5 - Four masses m are connected by rods of negligible...Ch. 10.6 - A hoop, a disk, a solid sphere, and a hollow...Ch. 10 - A rigid object rotates about a fixed axis. Do all...Ch. 10 - Can you drive your car in such a way that your...Ch. 10 - Can you drive your car in such a way that your...Ch. 10 - The fact that the Earth rotates gives people in...
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