[填空题]
A 4-cylinder gasolinep9h+alokmt s y+t0e9ux;a(c7w 7 hyt(pjjp,yz- t:8i(os+zm 7e vn(gm u/ w*hengine has an efficiency of 0.25 and delivers 220 J of work per cycle per cygvh7 *jw: ej(z( mim/upn p8y ,-+otzslinder. When the engine fires at 45 cycles per second,
(a) what is the work done per second? $ \times10^{4 }J/s$
(b) What is the total heat input per second from the fuel? $ \times10^{5 }J/s$
(c) If the energy content of gasoline is 35 MJ per liter, how long does one liter last? s
