A gasoline engine has a power output of 180 kW at 28% efficiency. How much heat

Question

A gasoline engine has a power output of 180 kW at 28% efficiency. How much heat must be supplied to the engine per second? 6.43 times 10^5 J 4.63 times 10^5 J 3.46 times 10^5 J 2.43 times 10^5 J 1.64 times 10^5 J In the adjoining pV diagram, which one of the processes will result in Q = W? a rightarrow 1 a rightarrow 2 a rightarrow 3 a rightarrow 4 More than one of the above An infinitely long wire carries a charge of 5.2 mu C/m. Calculate the strength of electric field at a distance of 0.3 m from the wire. 5.2 times 10^5 N/C 4.9 times 10^5 N/C 4.4 times 10^5 N/C 3.7 times 10^5 N/C 3.1 times 10^5 N/C

Explanation / Answer

Q3.

Known: Power output = 180 kW=180000 W

Efficinecy = 28%

Heat supplied=?

Efficiency = Power output / Heat supplied

so, heat supplied = power out put /efficiency = 180000/28%= 642857 J

so option A is correct

all the best in the course work

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