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Forum: Physics :: Waves & Light Propagation :: Properties of Waves  New Topic
Doppler Effect Reply
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kazzos Doppler Effect Sat 1 Jun 2013 2:57:00 AM
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Joined Sat 1 Jun 2013
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A driver travels northbound on a highway at a speed of 24.0 m/s. A police car, travelling southbound at a speed of 47.0m/s, approaches with its siren producing sound at a frequency of 2400 Hz.
(a) What frequency does the driver hear as the police car approaches?
2896.793003 Incorrect: Your answer is incorrect. Hz

(b) What frequency does the driver detect after the police car passes him?
 Hz

(c) Repeat parts (a) and (b) for the case when the police car is behind the driver and travels northbound.
while police car overtakes Hz
after police car passes Hz

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