When a car has a dead battery, it can often be started by connecting the battery from another car across its terminals. The positive terminals are connected together as are

the negative terminals. The connection is illustrated in Fig. P1.15. Assume the current iin Fig. P1.15 is measured and found to be 30 A. a) Which car has the dead battery? b) If this connection is maintained for 1 min, how much energy is transferred to the dead battery?