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sexobon · 12-21-2011, 05:19 PM

3. If I'm in a plane traveling at twice the speed of sound, can I hear the engine?

Not above the noise the treadmill is making at that speed.

12-21-2011, 05:19 PM	#6
sexobon I love it when a plan comes together. Join Date: Oct 2009 Posts: 9,793	3. If I'm in a plane traveling at twice the speed of sound, can I hear the engine? Not above the noise the treadmill is making at that speed.