Four traveling waves are described by the following equations where all quantities are measured in SI units and y represents the

Question

Four traveling waves are described by the following equations where all quantities are measured in SI units and y represents the displacement y 0 12 cos 3x 21t y 0 15 sin 6x 42t y 0 13 cos 6x 21t y 0 27 sin 3x 42t Which of these waves have the same period M IV OI and IV and also II and III OI and II and also III and IV They all have different periods O All of them have the same period OI and III and also II and IV

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