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harina [27]
4 years ago
6

Sound with a frequency above 20000 hertz

Health
2 answers:
Vedmedyk [2.9K]4 years ago
7 0
An ultra sound is a sound which has a frequency above 20 000 hertz
patriot [66]4 years ago
5 0
A sound with a frequency above 20,000 hertz is called an "ultrasound"
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