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Suppose you watch a leaf bobbing up and down as ripples pass it by in a pond. You notice that it does two full up and down bobs each second. Which statement is true of the ripples on the pond?A. They have a frequency of 4 hertz.B. They have a wavelength of two cycles per second.C. They have a frequency of 2 hertz.D. We can calculate the wavelength of the ripples from their frequency.

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