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Physics 21 Online
OpenStudy (anonymous):

Two sinusoidal waves, identical except for phase, travel in the same direction along a string, producing a net wave y´(x, t) = (3.9 mm) sin(16x - 5.2t + 0.80 rad), with x in meters and t in seconds. What are (a) the wavelength λ of the two waves, (b) the phase difference between them, and (c) their amplitude ym?

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