Afour-cylinder gasoline engine has an efficiency of 28 % and delivers 280 j of work per cycle per cylinder. a) if the engine runs at 25 cycles per second (1500 rpm), determine the work done per second. b)what is the total heat input per second from the gasoline. c) if the energy content of gasoline is 130 mj per gallon, how long does one gallon last?

5 w for 1hr = 5x60x60 joules=300x60=3000x6=18,000j as total energy conversion. efficiency of bulb needed for radiant to thermal within 18000

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.

one "light year" is the distance that light travels, through vacuum, in one julian year.   that's 365.25 days, of 24 hours each.