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Physics 13 Online
OpenStudy (anonymous):

Sound waves with frequencies below 20 hertz are called infrasonic and those with frequencies above 20,000 hertz are called ultrasonic. Answer True False

OpenStudy (anonymous):

Ultrasonic > 20KHz infrasonic < 20 Hz

OpenStudy (anonymous):

Super True xD

OpenStudy (anonymous):

thank you so much for taking the time to answer my stupid questions lol

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