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7 August, 01:30

A wave has a wavelength of 9 mm and a frequency of 18 hertz. What is its speed?

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  1. 7 August, 01:42
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    Wave speed = frequency * wavelength

    Convert wavelength to m: 9/1000 = 0.009

    Wave speed = 18 * 0.009

    Wave speed = 0.162m/s
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