Problem C18: One source produces a wave that varies in time as y₁=A sin(ωt) at a certain position. Another source produces a wave that varies in time as y₂=-A cos(ωt + (n₁/n₂)π) at the same position. What is the net amplitude at this position due to the two sources if they are coherent? If the displacement is: y(t)=y₁+y₂= √ n₃ A sin(ωt + φ), what is n₃? Note that n₁, n₂ and n₃ are unitless.

n1 =	n2 =	Input n3:

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Problem: