1. The problem statement, all variables and given/known data y(x,t) = 3e-(2x-4t)^2 Consider the wave function which represents a transverse pulse that travels on a string along the horizontal x-axis. a) Find the wave speed b) Find the velocity of the string at x=0 as a function of time 2. Relevant equations 3. The attempt at a solution I think, for b) I should take the derivative of the original wave function with respect to t. Easy if that's the case. I have no idea about part a.