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A bicyclist is moving toward a sheer wall while holding a tuning fork rated at 464...

A bicyclist is moving toward a sheer wall while holding a tuning fork rated at 464 Hz. If the bicyclist detects a beat frequency of 6 Hz (between the waves coming directly from the tuning fork and the echo waves coming from the sheer wall), calculate the speed of the bicycle. Assume the speed of sound is 343 m/s.

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Answer #1

Beat freequency= 2 Vs/ (V- Vs)

6= 2 Vs F/(343-Vs)

2058-6Vs=2Vs(464)

934Vs= 2058

Vs=2.2 m/s

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