Yes it does is the short answer but because I learned from my father that is never the way to answer here are the details.

The basic formula for finding the speed of sound is:

*R*(287.05 J/(kg·K) for air) is the gas constant for air- κ (kappa) is the adiabatic index (1.402 for air)
*T*is the absolute temperature in kelvins

Just some examples the speed of sound at sea level is about 760 miles per hour and it is about 660 miles for an airplane.

Now what about sound through a solid object?

The stiffness and density of the material will affect the speed. Stiffness will will increase the speed and density will slow it down. This can make the calculations complicated. Here is the basic formula used to calculate the speed through solid materials:

*C*is a coefficient of stiffness- ρ is the density

Most of the information for this post was obtained from:

http://en.wikibooks.org/wiki/Acoustics/Sound_Speed

http://www.engineeringtoolbox.com/speed-sound-d_82.html

There is also a great slide show that has some examples and video of sound and speed: http://www.slideshare.net/darrella/speed-of-sound

Please post comments if you want clarification about any information in this posting or have any comments or questions.

Keep exploring your world.

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