(Doppler Effect) 1. A sound source with a frequency of 790Hz moves away from a stationary observer at a rate of 15m/s. What frequency does the observer hear? The speed is 340 m/s.
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Answer:
Doppler Effect Frequency Calculation
At temperature C = F.
the sound speed in air is m/s.
If the source frequency is Hz.
and the velocity of the source is m/s = mi/hr.
then for an approaching source the frequency is Hz.
and for a receding source the frequency is Hz.