physics please help!

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find the speed of sound (in m/s) at -35°C at 1 atm pressure in dry air

  • physics please help! -

    There are many websites online provide the speed of sound in air as a function of temperature.

    Try this one:
    http://www.sengpielaudio.com/calculator-speedsound.htm

    The most accurate formula is
    Speed of sound = sqrt[(gamma)*R*T]
    where T is the Kelvin temperatuere and gamma is the specific heat ratio, which is 1.4 for dry air. R' is the molar gas constant divided by the molecular weight of air .

  • physics please help! -

    thank you!

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