Chemistry, 04.04.2020 03:33 xavier1283
What are the wavelengths of sound waves at the limits of human hearing - 20 Hz and 20 kHz? The speed of sound in 20 ºC (72 ºF) air is 343 m/s. 4 points
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What are the wavelengths of sound waves at the limits of human hearing - 20 Hz and 20 kHz? The speed...
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