1. The problem statement, all variables and given/known data A 1.86 g piston is attached to a rotating disc. The radius is 25.5 cm when the disc is stationary. A spring attached to the piston has a spring constant of 31.3 N/m. The piston is rotating at a frequency of 10 Hz. How har will the piston move outward k = 31.3 r = 25.5 cm = 0.255 m Frequency = 10 Hz m = 1.86 g 2. Relevant equations 1/2kx^2 = Es ac = v^2/r W = change in Energy 3. The attempt at a solution I really don't even know where to start. Please help. How am I supposed to relate frequency to speed?