Problem: A car's battery produces 12 V and has a charge of 70 A*hr. How long could the battery run a car whose entire electronic system had an equivalent resistance of 5 Ω? This assumes that the alternator isn't recharging the battery as you drive.

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A car's battery produces 12 V and has a charge of 70 A*hr. How long could the battery run a car whose entire electronic system had an equivalent resistance of 5 Ω? This assumes that the alternator isn't recharging the battery as you drive.

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