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18 September, 21:51

A wave has a wavelength of 125 meters is moving at a speed of 20 m/s. What is it's frequency?

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  1. 18 September, 22:21
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    Answer: 0.16Hz

    Explanation:

    Given that:

    wavelength (λ) = 125 meters

    speed (V) = 20 m/s

    frequency (F) = ?

    Recall that frequency is the number of cycles the wave complete in one second. And its value depends on the wavelength and speed of the wave.

    So, apply the formula V = F λ

    Make F the subject formula

    F = V / λ

    F = 20 m/s / 125 meters

    F = 0.16 Hz

    Thus, the frequency of the wave is 0.16 Hertz.
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