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Physics Waves And Oscillations Level: High School

Traveling Waves

Two traveling sinusoidal waves in a string are defined by the functions where y and x are in centimeters and t is seconds .

a) What is the phase difference between these two waves at the point x = 5.00 cm at t = 2.00 s ?

b) What is the positive x value closest to the origin for which the two phases differ by +- pi at t = 2.00 s ? (This is were two waves add to zero) .