Two springs with a spring constant of k = 6430 N/m are joined and connected to a block of mass 0.245 kg. The system is then set oscillating over a frictionless surface. What is the frequency of the oscillations? This is what I think is the correct approach to this question: since the springs are joined, the new spring now has a spring constant of 6430/2 = 3215 N/m. So f = sqrt(k/m)/2*pi = 18.23 Hz. The springs are in series. Is this correct? Thanks. As well, how will I be able to solve this question if the 2 springs were not identical?