University Physics with Modern Physics (14th Edition)

Published by Pearson
ISBN 10: 0321973615
ISBN 13: 978-0-32197-361-0

Chapter 9 - Rotation of Rigid Bodies - Problems - Discussion Questions - Page 293: Q9.2

Answer

a. K b. 0.

Work Step by Step

a. If the molecule rotates around the z-axis, the moment of inertia is the same as when it rotates around the x-axis, so it has the same kinetic energy as before. b. If the molecule rotates around the y-axis, the moment of inertia is zero, treating the masses as points, so it has no kinetic energy.
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