two history graphs of wave pulses on a string. For each, draw the snapshot graph at the specified moment of time

y (mm) History at x = 0 cm y (mm) History at x = 4 cm 2 2 t (s) [ (S) -0.04 0.04 0.08 0.12 -0.04 0.08 0.12 -2 -2 y (mm) Snapshot at f = 0 s y (mm) Snapshot at f = 0.02 s 2 (pulse is moving to the left at 100 cm/s) 2 (pulse is moving to the right at 100 cm/s) x (cm) x (cm) -2 2 4 6 8 10 12 .4 -2 2 4 6 8 10 12 -2 -2