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What is the efficiency of the pulley system. A pulley system is used to lift a 2000 newton engine up a distance of 3 meters. The operator must apply a force of 250 newtons to the chain of the pulley s?
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∙ 6y ago
The efficiency of the pulley system is calculated as the ratio of output work to input work. In this case, the output work is the work done in lifting the engine (2000 N * 3 m), which is 6000 joules. The input work is the work done by the operator (250 N * 3 m), which is 750 joules. Therefore, the efficiency is 6000/750 = 8 or 800%.
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A pulley system is used to lift a 2000 newton engine up a distance of 3 meters How much force will the operator have to apply if the mechanical advantage of the pulley system is 4?
The mechanical advantage of 4 means the operator only needs to apply a quarter of the force needed to lift the engine. Therefore, the operator will only need to apply 500 newtons of force to lift the 2000 newton engine.
Pulley system is used to lift 2000 newton and a distance of 3 meters the operator must apply a force of 250 N and to lift engine 3 meters the operator must pull a total 30 metersWhat is the value of w?
To find the weight of the engine (w), we can use the formula: work done = force × distance. In this case, the work done lifting the engine is the same whether the distance is lifted in one go or 30 small steps. Therefore, 250N × 3m = 30 steps × w × 3m. Solving for w gives w = 250 N.
When discussing engines the ratio of output work to input work expressed as a percentage is called .?
The ratio of output work to input work expressed as a percentage is called the efficiency of the engine. It measures how well an engine converts fuel energy into useful work output. A higher efficiency indicates that the engine is more effective at converting energy into work.
Which is an impossible value of efficiency for a heat engine?
100% efficiency is impossible for a heat engine working between two reservoirs at different temperatures according to the second law of thermodynamics.
What is the efficiency of a cars engine when the heat input is 2000000 j and waste heat is 1500000 j?
The efficiency of the engine is calculated using the formula: Efficiency = (Useful work output / Total heat input). In this case, the useful work output is the heat input minus the waste heat, which is 500,000 J. Therefore, the efficiency of the engine would be (500,000 / 2,000,000) * 100% = 25%.
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters How much force will the operator have to apply if the mechanical advantage of the pulley system is 4?
The mechanical advantage of 4 means the operator only needs to apply a quarter of the force needed to lift the engine. Therefore, the operator will only need to apply 500 newtons of force to lift the 2000 newton engine.
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters. The operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. To lift the engine 3?
What is the value of Wi? 7,500 joules
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
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters The operator must apply a force of 250 newtons to the chain of?
You will need 8 drops of chain. So the operator must apply 250 newtons to the 8th drop. The other 7 drops of chain must be reeved through the pulley system.
A pulley system is used to lift a 2000 newton engine up a distance of 3 meters The operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. value of fo?
wi 7500 joules fi 250 newtons di 30 meters A+
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