An electric car is being designed to have an average power output of 4,000 W for 2 h before needing to be recharged. (Assume there is no wasted energy.)
a) Flow much energy would be stored in the charged-up batteries?
b) The batteries operate on 30 V. What would the current be when they are operating at 4,000 W?
c) To be able to recharge the batteries in 1 h, how much power would have to be supplied to them?
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