Two sinusoidal waves, identical except for phase, travel in the same direction along a
Chapter 16, Problem 67(choose chapter or problem)
Two sinusoidal waves, identical except for phase, travel in the same direction along a string, producing the net wave y (x, t) (3.0 mm) sin(20x 4.0t 0.820 rad), with x in meters and t in seconds. What are (a) the wavelength l of the two waves, (b) the phase difference between them, and (c) their amplitude ym?
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