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March 27, 2017

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A police car's siren has a frequency of 567-Hz while traveling at 24.8-m/s. If the car is coming toward you, and you are stationary, what frequency would you hear?

  • Physics - ,

    Fr = ((V+Vr)/V-Vs)) * Fs.
    Fr = ((343+0)/(343-24.8)) * 567=611.2Hz.
    = Freq. heard by receiver.

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