Standing on the sidewalk next to your parked car you hear, Physics

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Standing on the sidewalk next to your parked car you hear

standing on the sidewalk next to your parked car you hear thesiren of an approaching fire engine. the transmitted frequency ofthe approaching fire engine is 1200 Hz but you hear a frequency of1363Hz. It is a very hot day with the air temp at 100 F.

a) what is the velocity of sound in air

b) what is the speed of the approaching fire engine inkm/h?

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Physics: Standing on the sidewalk next to your parked car you hear

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Physics: Standing on the sidewalk next to your parked car you hear

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