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The wording is a bit wonky, but because of the solution, the wording can be interpreted as: One wavelength of a wave goes by a point every second (because one wavelength is the distance between two crests). Thus, the period is one second and the speed can be determined by dividing the wavelength by the period.

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jbriggs444

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I would say that the wording is wrong rather than just wonky.The wording is a bit wonky, but because of the solution, the wording can be interpreted as: One wavelength of a wave goes by a point every second (because one wavelength is the distance between two crests). Thus, the period is one second and the speed can be determined by dividing the wavelength by the period.

It says two crests in

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