Homework Help: physics

Posted by sarah on Tuesday, May 22, 2012 at 1:06am.

For long range communication an elephant uses a low frequency rumble that is undetectable to human ears. One elephant can pick up another elephant's call from a distance of 10 km. The frequency of this rumble is about 13 Hz. How fast does the rumble travel?

physics - johnny, Tuesday, May 22, 2012 at 6:16am
sound propagation is directly proportional to the medium it travels. factors contribute to propagation are altitude, humidity,& temperature of the gas, like air. speed of sound is determined by air itself not on amplitude, frequency, or wavelenght.Formula: V (velocity)= meters/second, ft/second, or mph + T (temperature)in F or C.

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