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Question: a motorcyclist is traveling north on a road at a...

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A motorcyclist is traveling north on a road at a speed of 21.0 m/s. A police car, traveling south at a speed of 33.0 m/s, approaches with its siren producing sound at a frequency of 2550 Hz. (Enter your answers in Hz. Assume that the speed of sound in air is 343 m/s.) (a) What frequency does the motorcyclist observe as the police car approaches? (Enter your answer to the nearest integer.) Hz (b) What frequency does the motorcyclist detect after the police car passes her? Hz (c) Repeat parts (a) and (b) for the case when the police car is traveling northbound. while police car overtakes Hz after police car passes Hz

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