Answer
219 m.
Work Step by Step
The wave speed is frequency multiplied by wavelength.
$$v = f \lambda$$
Solve for the wavelength.
Wavelength = speed/frequency =$\frac{v}{f} = \frac{1530 m/s}{7 Hz} = 219 m$.
Conceptual Physics (12th Edition) Clone
by Hewitt, Paul G.
Published by
Addison-Wesley
ISBN 10:
ISBN 13:
Chapter 20 - Think and Solve - Page 389: 34
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