1. The problem statement, all variables and given/known data A transverse harmonic wave travels on a rope according to the following expression: y(x,t) = 0.18sin(2.2x + 17.1t) The mass density of the rope is μ = 0.146 kg/m. x and y are measured in meters and t in seconds. 2. Relevant equations I do not know what to use. 3. The attempt at a solution I tried to use change in wavelength / time but could not get the answer. Tried to use v=f*lamda, and use T=1/f but no avail.