1. The problem statement, all variables and given/known data At what time (in ms) after the discharge begins is the energy stored in the capacitor reduced to half its initial value? RC=7 ms 2. Relevant equations RC=7ms E=.5CV^2 E=.5Q^2/C E=.5QV Q_f = Q_i * e^(-t/RC) 3. The attempt at a solution I don't even know where to go from here. I know that since the problem involves RC, the equation to solve the problem must have some form of Q_f = Q_i * e^(-t/RC) but I'm stuck.