Physics: Principles with Applications (7th Edition)

Published by Pearson
ISBN 10: 0-32162-592-7
ISBN 13: 978-0-32162-592-2

Chapter 11 - Oscillations and Waves - Questions: 17

Answer

The elastic force factor of a solid is significantly greater than that of air.

Work Step by Step

Comparing equations 11-13, 11-14a, and 11-14b, we see that the speed of a longitudinal wave is given by, roughly: $$v=\sqrt{\frac{elastic force factor}{inertia factor}}$$ This is also stated on page 308. Though the density of solids is typically thousands of times greater than that of air, the elastic force factor for a solid (i.e., its bulk modulus) is about a million times greater than it is for air. Thus, the speed of sound in most solids is greater than in air.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.