P17_029 - y 1 m y 2 m y m •

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29. The phasor diagram is shown below: y 1 m and y 2 m represent the original waves and y m represents the resultant wave. The phasors corresponding to the two constituent waves make an angle of 90 with each other, so the triangle is a right triangle. The Pythagorean theorem gives y 2 m = y 2 1 m + y 2 2 m = (3 . 0cm) 2 + (4 . 0cm) 2 =25cm 2 .Thu s y m =5 . 0cm. ....................................................... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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This note was uploaded on 11/12/2011 for the course PHYS 2001 taught by Professor Sprunger during the Fall '08 term at LSU.

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