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3 waves below traveling the in same direction are superposed
400
-t)
200
yı= (2 × 10-3m) sin( Tx -
m
400
Ttt +
S
400
Tt
200
y2 = (3 × 103m) sin(-
TIX
m
200
y3 = (4 × 10-³m) sin(-
TTX
m
What is the resultant wave and its amplitude?
By what phase angle is the resultant wave ahead or behind the first wave?

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