Integrated Physics and Chemistry - Unit 10: Waves Doppler Effect
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subsonic
(of speed) less than that of sound in a designated medium
sonic boom
an explosive sound caused by the shock wave of an airplane traveling faster than the speed of sound
Doppler effect
change in the apparent frequency of a wave as observer and source move toward or away from each other
supersonic
having frequencies above those of audible sound
Mach number
the ratio of the speed of a moving body to the speed of sound
