1. The problem statement, all variables and given/known data A long rope with mass m = 10 kg is suspended from the ceiling and hangs vertically. A wave pulse is produced at the lower end of the rope and the pulse travels up the rope. (a) Explain why the speed of the wave pulse change as it moves up the rope; does it increase or decrease? (b) What will happen to the wave pulse if a section near the middle of the rope has been soaked in water shortly before the rope was hung from the ceiling? 2. Relevant equations v=sqrt(T/(m/L)) 3. The attempt at a solution For part a v increases as height increases because there's greater tension.... My problem is with part C, I think soaking the string in water would increase the mass of the string near the centre section, however this means it would also increase the tension proportionally. Because wave speed is dependant on the ratio of the tension to mass the wave speed before it was soaked in water would be exactly the same as the wave speed after. To put this into equation form v=sqrt(T/(m/L)) where T=mg so v=sqrt(Lg), The velocity has no dependence on mass. can someone verify whether this is true or false??