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## Homework Statement

The distance between a loudspeaker and the left ear of a listener is 1.90 m.

(a) Calculate the time required for sound to travel this distance if the air temperature is 20°C.

## Homework Equations

I am not sure, I tried looking in my text...but the only equation I could come up with is velocity = sqroot(ykT/m)

where y = specific heat, k is the Boltzmann constant, T is the given temp in K, and m is the distance..

## The Attempt at a Solution

I have no idea where to even start, because only 2 things are known x in meters and the Temp 20 deg or 293 K. Can anyone help me out?