Four sound waves are to be sent through the same tube of
Chapter , Problem 96(choose chapter or problem)
Four sound waves are to be sent through the same tube of air, in the same direction: s1(x, t) # (9.00 nm) cos(2px $ 700pt) s2(x, t) # (9.00 nm) cos(2px $ 700pt " 0.7p) s3(x, t) # (9.00 nm) cos(2px $ 700pt " p) s4(x, t) # (9.00 nm) cos(2px $ 700pt " 1.7p). What is the amplitude of the resultant wave? (Hint: Use a phasor diagram to simplify the problem.)
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