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An electric car is being designed to have an average power output of 4,200 Watt for 2 hour before needing to be recharged. (Suppose there is no wasted energy.)

(a) Find how much energy would be stored in the charged batteries?

____J

(b) The batteries operate on 50 Volt. Find what would the current be when they are operating at 4,200 Watt?

_____A

_____W

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