Thursday
September 18, 2014

Homework Help: Physics

Posted by James on Wednesday, April 13, 2011 at 8:24pm.

Two waves with different periods are described mathematically by:
y1 = (7.0 m)cos[ 2Łkt/(3.0 ms)-Łk/2 ]
y2 = (2.0 m)cos[ 2Łkt/(3.1 ms)-3Łk/2]
What is the beat frequency for these two waves?

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