1. The problem statement, all variables and given/known data There is a cubical pendulum with a side of 2a filled with water that is leaking at a constant rate. Determine the period of the pendulum in terms of variables. 2. Relevant equations T = 2π√(l/g) v = s³ for a cube v = s²h for a rectangle 3. The attempt at a solution v=s²h v=4a²h The length varies with the new center of mass which is h/2, so l = h/2. v=8a²l differentiate with respect to time and dv/dt = 8a²dl/dt dl/dt = 1/(8a²)dv/dt to avoid the problem from looking too complicated, let's set dv/dt = r li= initial length T = 2π√((li-(rt/(8a²)))/g) I multiplied by time so that we would be left with the change in length, and I subtracted it because dl/dt is negative, and the length should obviously be increasing. Is this right?