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Originally Posted by Troubleshooter
I'm guessing this one is based on the fact that the speed of sound is relative to the density of the medium it travels through.
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I probably could pick a better way to introduce m'self, but this is a topic I got mildly interested in one day during an aircraft systems.
the speed of sound does not depend on density or temperature, except as how these things affect the stiffness of the medium. So warm rubber( quite dense) transmits sound slower that glass (less dense). Stiffness determines the speed of sound in any medium.