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QUESTION
The burning of gasoline in a car releases about 3.0 104 kcal/gal. If a car averages 39 km/gal when driving 92 km/h, which requires 20 hp, what is the...
The burning of gasoline in a car releases about 3.0 × 104 kcal/gal. If a car averages 39 km/gal when driving 92 km/h, which requires 20 hp, what is the efficiency of the engine under those conditions?1%
