## Conceptual Physics (12th Edition)

Published by Addison-Wesley

# Chapter 20 - Think and Solve: 34

219 m.

#### Work Step by Step

The wave speed is frequency multiplied by wavelength. $$v = f \lambda$$ Solve for the wavelength. Wavelength = speed/frequency =$\frac{v}{f} = \frac{1530 m/s}{7 Hz} = 219 m$.

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