\f(Figure 1) (a) is a snapshot graph at t = 0 s of two waves moving to the right at 1.0 m/s. The string is i ? o At what time was the snapshot graph (b) taken? Express your answer with the appropriate units. View Available Hint(s) v Hint 1. How to approach the problem Recall what happens to a pulse after a collision with a boundary. Also, consider the pulse during the collision. - 0= - t=|5 S m Previous Answers Request Answer Incorrect; Try Again; 4 attempts remaining Consider the left wave after = 5 s. The maximum of the left wave moved 5 m, so the displacement at z = 7 m must be positive. You may want to review Hint 1. How to approach the