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The efficiency of the car's engine is calculated as the ratio of the useful work output to the total heat input. In this case, the useful work output is 500000 joules (2000000 J - 1500000 J) and the total heat input is 2000000 joules. Therefore, the efficiency is 500000 joules / 2000000 joules, which equals 0.25 or 25%.

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What is the efficiency of a cars engine when heat input 2000000 joules and waste heat is 150000 joules?

The efficiency of the car's engine can be calculated using the formula: Efficiency = (Useful energy output / Total energy input) * 100%. In this case, the useful energy output is the heat used for work, which is (2000000 - 150000) Joules. Therefore, the efficiency would be ((2000000 - 150000) / 2000000) * 100% = 92.5%.


What is the efficiency of a car's engine when he input is 20000 joules and the waste heat is 15000 joules?

The efficiency of the car's engine is calculated by dividing the useful energy output by the energy input. In this case, the useful energy output would be 5000 joules (20000 input - 15000 waste heat), thus the efficiency would be 5000/20000 = 0.25 or 25%.


What is the correct conversion between joules and kilojules?

To convert joules to kilojoules, divide the number of joules by 1000. For example, 1 kilojoule = 1000 joules, 5000 joules = 5 kilojoules.


How many joules are in 55.2 calories?

A calorie is about 4.2 joules, therefore a kilocalorie is about 4200 joules. You can multiply by this number.


What is the efficiency of a street cleaners engine when is that heat input is 200000 Joules and the waste he is 150000 Joules?

The efficiency of the street cleaner's engine is calculated by dividing the useful output (work done) by the input energy. In this case, the useful output is 150000J (work done) and the input energy is 200000J. The efficiency would be 150000J / 200000J = 0.75 or 75%.

Related Questions

What is the efficiency of a cars engine when heat input 2000000 joules and waste heat is 150000 joules?

The efficiency of the car's engine can be calculated using the formula: Efficiency = (Useful energy output / Total energy input) * 100%. In this case, the useful energy output is the heat used for work, which is (2000000 - 150000) Joules. Therefore, the efficiency would be ((2000000 - 150000) / 2000000) * 100% = 92.5%.


What is the efficiency of a cars engine when heat input is 2000000 joules and the waste heat is 1500000 joules?

25%Take Input - Waste = Differencethen D / I = Effeciencyso, 400000 - 300000 = 100000and 100000 / 400000 = .25 or 25%now ask the teacher next time...Dont answer the question if you are going to get an attitude...


What is the efficiency of a car's engine when the heat input is 100000 joules and the waste heat is 75000 joules?

25%


What is efficiency of lawn mower's engine when the heat input is 1000 joules and the waste heat is 750 joules?

25 percent


What is the efficiency of lawn mower's engine when the heat input is 1000 joules and the waste heat is 750 joules?

25 percent


What is the power output of an engine that does 60 000 joules of work in 10 seconds?

60,000 joules per 10 seconds = 6,000 joules per second = 6,000 watts


What is the efficiency of a car's engine when he input is 20000 joules and the waste heat is 15000 joules?

The efficiency of the car's engine is calculated by dividing the useful energy output by the energy input. In this case, the useful energy output would be 5000 joules (20000 input - 15000 waste heat), thus the efficiency would be 5000/20000 = 0.25 or 25%.


If an engine must do 500 joules of work to pull a 100 newtons load up to a height of 4 meters What is the efficiency of the engine?

400


How many joules are in 56 kilo joules?

There are 56,000 joules in 56 kilojoules. This is because there are 1,000 joules in a kilojoule.


How do you convert from killi joules to joules?

To convert from kilo joules to joules you have divide by 1000 as 1 kilo joule is equal to 1000 joules. E.g. 2 kilo joules equals 2000 joules.


How many joules in a petajoule?

A petajoule is 1015 joules (Quadrillion joules)


How do you Convert 3 calories to joules?

4.18400 joules = 1 calorie, so 12.552 joules = 3 calories