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23-09-2020
Physics

contestada

QUICK

a sound wave has a frequency of 85 Hz and a wavelength of 4.2 m. what is the wave speed of the sound wave?

A. 357 seconds

B. 89.2 m/s

C. 357 m/s

D. 20 m/s

Respuesta :

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28-09-2020

Answer:C

Explanation:

I did the test

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