The capacity of a storage battery, such as those used in automobile electrical systems, is rated in ampere-hours (A·h). A 50 A·h battery can supply a current of 50 A for 1.0 h, or 25 A for 2.0 h, and so on. Part A What total energy can be supplied by a 12 V, 50 A·h battery if its internal resistance is negligible? Express your answer in joules. Part B What volume (in liters) of gasoline has a total heat of combustion equal to the energy obtained in part (a)? (See Section 17.6; the density of gasoline is 900 kg/m³.) Express your answer in liters.