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Physics, 17.05.2020 19:57 havennn

If the frequency of wave is 400 Hz and its
wavelength is 2.5 m, what is the velocity?
a 3000 km/s
b 100 m/s
C 10000 m/s
d 1000 m/s

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If the frequency of wave is 400 Hz and its
wavelength is 2.5 m, what is the velocity?
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