Question: A sparrow flutters around a crow sitting on a tree branch with a speed of 4 . 0 m / s , while chirping with

A sparrow flutters around a crow sitting on a tree branch with a speed of 4.0 m/s, while chirping with a frequency of 850.0 Hz. What frequency of sound does the crow hear, as the sparrow flutters away and a speed of sound in the air is 3.0 m/s.

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