Physics, 30.07.2019 02:20 ashleyrover11
An ideal parallel-plate capacitor consists of a set of two parallel plates separated by a very small distance. the capacitor plates are charged to equal and opposite charges ±q and are disconnected from the battery used to charge them. at this point the capacitor is storing an unknown energy u. a point charge of mass m and the same charge as the positive plate (q) is brought against the center of the positively charged plate and released from rest. it accelerates towards the negative plate, striking it with velocity v. in terms of the given quantities (and fundamental constants) what was the energy u stored in the capacitor? a. 1 2 u mv  4 b. 1 2 u mv  2 c. 2 u mv  d. 1 u qv  2 e. u qv  f. none of the abov
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