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August 3, 2015

Homework Help: physics

Posted by physics22 on Monday, August 6, 2007 at 11:42am.

A bat flying at 5.5 m/s emits a chirp at 35 kHz. If this sound pulse is reflected by a wall, what is the frequency of the echo received by the bat?
______ kHz (Assume the speed of sound is 345 m/s.)

thanks for any help

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