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15 beats are heard in 5 seconds when a piano key and a tuning fork of slightly higher frequency (440 Hz) are struck at the same time. What is the frequency of the sound emitted by the piano key?

  • Physics -

    Fp=440 - 15/5 = 437Hz = Freq. of piano.

    Brent, check your 3-28-11, 11:57am post
    for solution to your Pre-cal prob.

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