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31 May, 19:19

A motorcycle and a police car are moving toward one another. The police car emits sound with a frequency of 512 Hz and has a speed of 27.0 m/s. The motorcycle has a speed of 13 m/s. What frequency does the motorcyclist hear

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  1. 31 May, 22:39
    0
    260Hz

    Explanation:

    V=frequency X wavelength

    27=512 X wavelength

    Wavelength=27/512

    =0.0527

    13=0.0527x Freq

    Freq=13/0.0527

    =260Hz
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