A stationary detector measures the frequency of a sound
Chapter , Problem 64(choose chapter or problem)
A stationary detector measures the frequency of a sound source that first moves at constant velocity directly toward the detector and then (after passing the detector) directly away from it. The emitted frequency is f. During the approach the detected frequency is f, app and during the recession it is f, rec. If (f, app $ f, rec)/f # 0.500, what is the ratio vs/v of the speed of the source to the speed of sound?
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