Subsonic signals are sounds or vibrations that have a frequency lower than that which may be heard by the human ear as a discernable tone. Vibrations lower than 30 Hz (30 cycles per second) are considered subsonic.
Subsonic is below or slower than the speed of sound, and supersonic is above or faster than the speed of sound.
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A subsonic aircraft doesn't produce a sonic boom because it is subsonic, and cannot produce enough speed to do so. A sonic boom is created when an aircraft becomes supersonic, accelerating past the speed of sound. Since it is traveling near the speed of sound at this time, the sound waves build up around it, finally traveling through the air as it is left behind by the aircraft.
They're called "subsonic".That makes sense. "Sub" means "under", and "sonic" refers to "sound"."Subsonic" waves are those with frequencies lower than sounds audibleto the human ear.
Speed has nothing to do with where you are. You can travel below the speed of sound pretty much anywhere.
The antonym for subsonic is supersonic.
Subsonic means "slower than the speed of sound" so a subsonic bullet is any bullet that travels slower than the speed of sound.
Subsonic - media server - was created on 2005-02-10.
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Supersonic
Transonic being past the speed of sound and subsonic is below the speed of sound.
subsonic is moving below the speed of sound, supersonic is faster than speed of sound
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Subsonic is below or slower than the speed of sound, and supersonic is above or faster than the speed of sound.
Weird Connections - 2008 The Subsonic Chicken was released on: USA: 17 March 2009
Subsonic means any speed below the speed of sound. (Mach 1). So subsonic aircraft range from 0 - 661 knots at sea level. (Mach 1 is 661 knots at sea level.)
Subsonic sounds can affect internal organs. Once that is established the mental effects will be clear too.