Question

Please give a full explanation. I am super confused given a history graph and drawing a snapshot graph.

Answer 1

6. A snapshot graph is defined as the graph that shows the wave displacement as a function of position at a single instant of time. From the history graph of the wave, the position of the wave is x = 2m and the wave is moving right at 1.0 m/s. So that, the leading edge of the wave moves to the right and reaches x = 2m att = (s. And the trailing edge of the wave moves right and touches x = 2m att =4s. That is, the time 4 s after the snapshot graph. That is, the trailing edge is left of x = 2m for time at t=0s. Hence, at t = 0s, the wave ranges from x =-2 to x = 2m. Therefore, the snapshot graph is shown as follows: D(cm) 1 = 0 s - x (cm) -4 -3 -2 -1 0 1 2 3 4