(Solved): An ideal LC circuit has a capacitor with a capacitance of 21.9 mF and an inductor with inductance ...

An ideal LC circuit has a capacitor with a capacitance of 21.9 mF and an inductor with inductance of 20.0 mH. The circuit starts with the capacitor charged with 7.9 mC of charge, and no current flowing in the circuit. At what time is the first instant that 35% of the energy in the circuit is stored in the inductor? Give your answer in units of ms.