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OpenStudy (anonymous):
Two sinusoidal waves have the same angular frequency, the same amplitude y, and travel in the same direction in the same medium. If they differ in phase by 50°, the amplitude of the resultant wave is 1.3y or 0.91y or 1.8y?
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OpenStudy (anonymous):
0.91y
OpenStudy (anonymous):
its incorrect
OpenStudy (anonymous):
oh sorry its 1.8 y
OpenStudy (anonymous):
i used all the chance so cannot check the answer... do you mind to show me how to do it?
OpenStudy (anonymous):
|dw:1400558796318:dw|
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