A police car sounding a siren with a frequency of 1580Hz is traveling at 1200km/hr. (a) What frequencies does an observe

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answerhappygod
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A police car sounding a siren with a frequency of 1580Hz is traveling at 1200km/hr. (a) What frequencies does an observe

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A police car sounding a siren with a frequency of 1580Hz istraveling at 1200km/hr.(a) What frequencies does an observer standing next to the roadhear as the car approaches and as
it recedes?
(b) What frequencies are heard in a car traveling at 90.0km/hrin the opposite direction before and after passing the policecar?
(c) The police car passes a car traveling in the same directionat 80.0km/hr. What two frequencies are hear in this car?
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