lolzzzzzz14
Answered

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Sagot :

slrog

Wave Speed (M/s) = Frequency (Hz) x Wavelength (M)

Wave Speed = 3500Hz x 2.8M = 9800M/s

Answer = Top one

pgonzales15

Answer:

A

Explanation:

3500Hz*2.5m=9800m/s

Give Brillienst please!!!!

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