Mach I is 760 mph at sea level. What is Mach I at 36,000 feet?
#257. Asked by l. (Mar 30 00 5:17 PM)
Sound travels faster in the more dense air at sea level than in the thinner air high above Earth. It ranges from about 760 mph at sea level to approximately 660 mph at 36,000 feet. Sound travels even faster in water.
Mar 30 00, 5:49 PM
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