U1D involved the study of waves. The following is a diagram of a transverse wave in a body of water. The blue dot represents a water molecule at the crest of one wave. The purple dot represents a water molecule at the neighboring crest. It takes the blue dot 0.5 seconds to go from its highest point to its lowest point. The distance between the blue dot's highest and lowest point is 0.4 meters. The distance between the blue dot and the purple dot is 1.6 meters. What is the period of the wave? What is the amplitude of the wave?

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