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March 30, 2017

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If the wavelength of the sound wave is 1.3 meters, what is the frequency?

  • Physics - ,

    L = 1.3m * 3.3ft/m = 4.29ft.

    L = V(1/F) = 4.29FT,
    L = 990ft/us * (1/f)us = 4.29,
    L = 990 / f = 4.29,
    4.29f = 990,
    f = 990 / 4.29 = 231Mh.

  • Physics - ,

    CORRECTION!

    The speed of sound in air = 343m/s.
    L = 343m/s * (1/f)s = 1.3m,
    343 / f = 1.3,
    1.3f = 343,
    f = 343 / 1.3 = 263.8Hz.

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