2 Standing Wave

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This looks identical to the initial conditions for preset 01. Run and explain what is different about the initial conditions. Take a look at the graph which was set to monitor the displacements of 5 consecutive atoms in the chain. Copy graph this graph to save it, return to preset 01, and run it briefly to obtain a graph of the motion of the same five consecutive atoms. Be sure you can rationalize the differences between these two graphs?