1. The problem statement, all variables and given/known data A spring is held vertically between two supports separated vertically. That stationary wave set up looks like this: http://img690.imageshack.us/img690/9417/80122335.jpg [Broken] Deduce what you can about the speed of the waves in the spring. (Note that the wave pattern is slightly "fatter" at the bottom than the top) 2. Relevant equations 3. The attempt at a solution I have no idea where to start thinking. The ovoid shape definitely means something. I know that the frequency must be the same but what about the wavelength for such asymmetrical oscillation?