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phsycs

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A person shouts in a canyon. 3 s later they hear the echo. How far away is the canyon wall from which the sound wave was reflected?

how do i do this problem?

  • phsycs -

    distance=velocity*time
    2*canyonwidth=speedsound*time

    solve for canyon widthhttp://www.ausetute.com.au/calcelemf.html

  • phsycs -

    2cw=340*3/2=510m but the answer given is 514.5m?

  • phsycs -

    Sound waves move through air at sea level at a velocity of 343 m/s at 20ºC.
    x=343•3/2=514.5 m

  • phsycs -

    50.7

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