Two Waves Travel Simultaneously Through the Same Medium

Multiple Choice

Two waves travel simultaneously through the same medium. The first wave is described by y₁(x,t) = (2.00 cm) cos[kx-ωt] and the second wave by y₂(x,t) = (3.00 cm) sin(kx-ωt) . What is the amplitude of the resulting wave?

A) 1.00 cm
B) 2.50 cm
C) 3.61 cm
D) 5.00 cm
E) 3.94 cm