Two waves are described by y₁=0.30sin[π(5x−200)t] and y₂=0.30sin[π(5x−200t)+π/3] where y₁−y₂ and x are in meters and t is in seconds. When these two waves are combined, a travelling wave is produced. What are the (a) amplitude, (b) wave speed, and (c) wave length of that travelling wave?
A. 0.62m,40m/s,0.40m
B. 0.52m,80m/s,0.60m
C. 0.52m,40m/s,0.40m
D. 0.92m,80m/s,0.40m
