Two sinusoidal waves, identical except for phase, travel in the same direction along a string producing a net wave y'(x, t) = (2.5 mm) sin(17x - 4.0t + 0.840 rad), with x in meters and t in seconds. (Assume that the phase constant for one of the individual waves is zero.)
(a) What is the wavelength λ of the two waves?
m
(b) What is the phase difference between them?
rad
(c) What is their amplitude ym?
mm