A four-cylinder gasoline engine has an efficiency of 0.22 and delivers 180 J of work per cycle per cylinder. The engine fires at 25 cycles per second.
(a) Determine the work done per second.
(b) What is the total heat input per second from the gasoline?
(c) If the energy content of the gasoline is 130 MJ per gallon, how long does one gallon last?