18. I The displacement of a wave traveling in the positive x-direction is y (x, t) = (3.5 cm) x cos (2.7x - 92t), where x is in m and t is in s. What are the (a) frequency, (b) wavelength, and (c) speed of this wave?

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18. I The displacement of a wave traveling in the positive x-direction is y (x, t) =
(3.5 cm) x cos (2.7x-92t), where x is in m and t is in s. What are the (a)
frequency, (b) wavelength, and (c) speed of this wave?
Transcribed Image Text:18. I The displacement of a wave traveling in the positive x-direction is y (x, t) = (3.5 cm) x cos (2.7x-92t), where x is in m and t is in s. What are the (a) frequency, (b) wavelength, and (c) speed of this wave?
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