Question: 1 a capacitor is connected to a 9 volt battery...

1) A capacitor is connected to a 9 volt battery which is initially does not have a dielectric. The battery is disconnected, the plates are moved further apart by a factor of 4, and a dielectric of 2.34 is inserted between its plates. The stored energy in this configuration is 465 micro-joules. What was the original value of the capacitance (of the capacitor) in micro-farads? That is, the capacitance when connected to the battery without a dielectric.