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April 19, 2014

Homework Help: physics

Posted by Elisa on Monday, August 4, 2008 at 11:04pm.

A bat flying at 5.0 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?

I keep getting the wrong answer, don't understand.

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