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A wave x meters long has a speed of y meters per second. The frequency of the wave is

a. x/y hertz
c. y · x hertz
b. y/x hertz
d. y + x hertz

User Kwhitley
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1 Answer

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The answer is B. y/x hertz.

Frequency of a wave is defined as the ratio between the speed and wavelength of the wave. The unit of frequency is hertz (Hz) which is also equivalent to s^-1 or "per second". Following the units of wavelength (m) and speed (m/s), it can also be inferred that frequency is equal to (m/s)/m or y/x.
User Suhrob
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