This limit varies from person to person and
is approximately 20 Kilohertz(20,000 hertz) in healthy young adults.
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This limit varies from person to person and is around 20 Kilohertz(20,000 hertz) in healthy young adults.
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Hz can be prefixed;
commonly used multiples are kHz(Kilohertz, 103 Hz),
MHz(megahertz, 106 Hz), GHz(gigahertz, 109 Hz) and THz terahertz, 1012 Hz.
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Kilohertz is commonly used to measure the frequencies of sound waves,
since the audible spectrum of sound frequencies is between 20 Hz and 20 kHz.
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Typical AM radio
signals have a frequency of 1000 kHz(Kilohertz), while typical FM signals are about 100 MHz(megahertz)-
so they vibrate about a hundred times faster.
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If the frequency is in Kilohertz(kHz)
or the wave speed is in km/s you will need to convert these numbers to Hertz and m/s by multiplying by 1000(10 kHz = 10,000 Hz).