## Physics: Principles with Applications (7th Edition)

Published by Pearson

# Chapter 11 - Oscillations and Waves - Questions: 14

#### Answer

We expect the speed of sound waves in air to increase as the air temperature increases.

#### Work Step by Step

Refer to equation 11–14b. The speed of sound waves in a gas is given by $v=\sqrt{\frac{B}{\rho}}$. When the air temperature increases, the density $\rho$ decreases, so the wave speed becomes higher.

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