What speed does the man obtain as a result

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Q. A person with perfect pitch sits on a bus bench listening to the 441-Hz horn of an approaching car. If the person detects a frequency of 479 -Hz, how fast is the car moving?

Q. A 94 kg man lying on a surface of negligible friction shoves a 74 -g stone away from himself, giving it a speed of 4.00 m/s. What speed does the man obtain as a result?

Reference no: EM1384545

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