A wave pulse is traveling down a spring (to the right) with a speed of 2 m/s toward a second spring attached to its opposite end. Sketch what the springs would look like after the pulse has passed into the second spring if

(a) the speed of a wave in the second spring is 1 m/s.
(b) the speed of a wave in the second spring is 4 m/s.
(c) the speed of a wave in the second spring is 2 m/s.

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