ANSWERS: 1
  • Mach is a measure of speed relative to the speed of sound. For example, If a jet is moving at Mach 5 then it is equivalent to saying it is moving at 5 times the speed of sound. Mach speeds do not necessarily have to be above the speed of sound either. Super Sonic simply means an object is traveling faster that the speed of sound, it does not give a measure of how much faster.

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