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The efficiency of the car's engine is calculated by dividing the useful energy output by the total energy input. In this case, the useful energy output would be 200,000,000 J - 1,150,000 J = 198,850,000 J. Thus, the efficiency would be (198,850,000 J / 200,000,000 J) * 100 = 99.43%.

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1y ago

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