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12. Below are two history graphs for wave pulses on a string. The speed and direction of each pulse are índicated. For each, draw the snapshot graph at the specified instant of time. No distance scale is provided, so you must determine an appropriate scale and label the x-axis appropriately a. b. History atx=2cm Atx=-1 cm t (s) t (s) 0,02 0.04 0.06 -006 -002 006, 00 cms to the left 50 cm/s to the left Snapshot at t= 0.02 s Saapshot at t 0.06s
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