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jh2297474
Joined: 17 Aug 2010
Posts: 4
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 Posted: Tue Aug 31, 2010 7:41 pm Post subject: |
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I dont understand from where did you guys realize the amplitude was zero because the dash lines in the graph show a summation that is not zero in amplitude please explain
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mcat_premed3832
Joined: 19 Oct 2006
Posts: 413
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| Posted: Tue Aug 31, 2010 11:27 pm Post subject: |
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| There are 2 dashed lines in Figure 2. Look very carefully at the dashed line which is labelled "Summation Wave": it is a straight line. Since the 2 sinusoidal waves are ALWAYS equal and opposite at every single point in the graph, that means every +5 has a -5 on the other curve, they will always create a summation wave of 0. |
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