A 20.0-? F capacitor is charged by a 150.0-V power supply, then disconnected from the power supply and connected in series with a 0.280-mH inductor. Compute (a) the oscillation frequency of the circuit; (b) the energy stored in the capacitor at time t = 0 ms (the moment of connection with the inductor); (c) the energy stored in the inductor at t = 1.30 ms.