Can someone help me with these
A heat engine consists of an oil fired steam turbine driving an electric power generator with a power output of 120 megawatts. The thermal efficiency of the heat engine is 40 percent.
a. Determine the time rate at which heat is supplied to the engine.
b. If the heat of combustion of oil is 4.4 x 107 joules per kilogram, determine the rate in kilograms per second at which oil is burned.
c. Determine the time rate at which heat is discarded by the engine.
d. If the discarded heat is continually and completely absorbed by the water in a full tank measuring 200 meters by 50 meters by 10 meters, determine the change in the temperature of the water in I hour.
(Density of water is 1.0 x 103 kg/m3; specific heat of water is 4.2 x 103, J/kg°C)
thanks
what does 300E6 mean 4.4E7?????
is it 300*10^6 etc?
where do those numbers come from