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AP® Physics 1 & 2

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Moderate

Echo Distance

APPH12-WIXYXK

A yodeler shouts a 1400 Hz note, which echoes off of nearby cliff wall, and the yodeler hears the note echoed back after 4 seconds.

If sound is traveling through the air at 350 m/s, how far is the yodeler from the cliff wall?

A

4 meters

B

175 meters

C

700 meters

D

1400 meters