I was wondering if someone would be able to help me with the following questions: -A progessive wave has amplitude 0.40m and wave length 2.0m. At a given times the displacement y=0 at x=0. Calulate the displacement at (a)t=5sec (b) t=0.8sec -A progessive wave has amplitude 2.5m and a time period of 10sec. At a given distance the displacement y=0 at t=0. Calulate the displacement at (a)t=0.001sec (b) t=0.003sec It would be useful if there is a step up step method, which could show how you got to the answer that you got, which therefore means that i would be able to use it for other examples. Thankyou.