Choose the one alternative that best completes the statement or answers the question. -A whistle produces sound of frequency of 1.00 kHz. If a listener moves with a speed of 30

Choose the one alternative that best completes the statement or answers the question.
-A whistle produces sound of frequency of 1.00 kHz. If a listener moves with a speed of 30 m/s away from the whistle, what frequency does this person hear if the sound speed is 340 m/s?
A) 1090 Hz
B) 919 Hz
C) 912 Hz
D) 1000 Hz

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