Monday
September 1, 2014

Homework Help: Physics - Waves

Posted by Patrick on Sunday, February 1, 2009 at 7:03pm.

A speaker which produces a frequency of 400 Hz is moving away from an observer and towards a wall at 5 m/s when it is 23 degrees Celsius. What is the frequency of the sound that travels back to the observer? What is the frequency of the sound that travels forward and bounces off the wall, then gets to the observer?

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