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  • 18-04-2018
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A sound wave has a frequency of 440 HZ and a wavelength of .780 m what is the waves speed of the sound wave.
A.100m/s
B.34m/s
C.2m/s
D.343.2m/s

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Аноним Аноним
  • 18-04-2018
The answer is D.....
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