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Physics 8 Online
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?

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):

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