1. A sine wave is traveling to the right on a cord. The lighter line in the figure represents the shape of the cord at time t = 0; the darker line represents the shape of the cord at time t = 0.100 s. (Note that the horizontal and vertical scales are different.)

y (cm) f = 0.100 s 2 x (m) ON LO O 5 10 15 20 25 30 35