# physics

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what is the speed of a sound wave if its frequency s 160 hertz and its wavelength is 2.2m?

• physics -

what is speed? it's m/s

wavelength is in m.
frequency is in 1/s

so, speed = wavelength * frequency = 160*2.2 m/s

Think about it. If each wave extends 2.2m, and there are 160 of them every second, than that means the wave travels at 2.2*160 meters every second.

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