18. [/3 Points] DETAILS SERCP10 16.P.O47. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A parailel-plate capacitor has capacitance 6.50 uF. (a) How much energy is stored in the capacitor if it is connected to a 20.00-V battery7 (b) If the battery is disconnected and the distance between the charged piates doubled, what is the energy stored? (c) The battery is subsequently reattached to the capacitor, but the plate separation remains as in part (b). How much energy is stored