Question: Two sinusoidal waves with the same amplitude of 9.00 mm and the same wavelength travel together along a string that is stretched along an x

Two sinusoidal waves with the same amplitude of 9.00 mm and the same wavelength travel together along a string that is stretched along an x axis. Their resultant wave is shown twice in Figure as valley A travels in the negative direction of the x axis by distance d = 56.0 cm in 8.0 ms. The tick marks along the axis are separated by 10cm, and height H is 8.0 mm. Let the equation for one wave be of the form y(x, t) = ym sin (kx + wt + Φ1), where Φ1 = 0 and you must choose the correct sign in front of w. For the equation for the other wave, what are?
(a) ym
(b) k,
(c) w
(d) Φ2, and
(e) The sign in front of w?

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