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July 30, 2015

Homework Help: physics

Posted by Anonymous on Monday, April 9, 2012 at 10:37pm.

.Two automobiles are equipped with the same single-frequency horn. When one is at rest and the other is moving toward an observer at 14 m/s, a beat frequency of 5.1 Hz is heard. What is the frequency the horns emit? Assume T = 20C.

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