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What is the efficiency of a car that uses 400000 J of energy from gaseline to make 48000 J of kinetic energy?
The efficiency of the car can be calculated as the ratio of the useful output energy (kinetic energy) to the input energy (energy from gasoline). In this case, the efficiency would be (48000 J / 400000 J) * 100% = 12%. This means that 12% of the energy from gasoline is being converted into kinetic energy.
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What is the effiency of a cars engine when heat input is 400000 joules and the waste heat is 300000 joules?
The efficiency of the car's engine can be calculated using the formula: Efficiency = (Useful energy output / Total energy input) x 100%. In this case, the useful energy output is the heat input minus the waste heat: 400000 J - 300000 J = 100000 J. Therefore, the efficiency would be (100000 J / 400000 J) x 100% = 25%.
What is the effiency of a motor that converts100j of electrical energy into 70j of useful kinetic energy?
The efficiency of the motor can be calculated as the ratio of useful output energy to input energy. In this case, the efficiency would be 70J (useful kinetic energy) divided by 100J (electrical energy) multiplied by 100% to get a percentage. So, the efficiency of the motor is 70%.
What is the effect of kinetic friction on a block and pulley system when determining the overall efficiency of the system?
Kinetic friction in a block and pulley system reduces the efficiency by converting some of the mechanical energy into heat. This results in a decrease in the overall efficiency of the system as some of the input energy is lost due to friction.
Energy an object has due to its motion?
kinetic energyThe energy of motion is kinetic energy.
Energy changes in a moving airplane?
In a moving airplane, energy changes primarily occur between kinetic energy and potential energy. As the aircraft ascends, kinetic energy is converted into potential energy, allowing it to gain altitude. Conversely, during descent, potential energy is converted back into kinetic energy, increasing speed. Additionally, engines convert fuel's chemical energy into kinetic energy for propulsion, while aerodynamic forces manage energy efficiency during flight.
What is the effiency of a cars engine when heat input is 400000 joules and the waste heat is 300000 joules?
The efficiency of the car's engine can be calculated using the formula: Efficiency = (Useful energy output / Total energy input) x 100%. In this case, the useful energy output is the heat input minus the waste heat: 400000 J - 300000 J = 100000 J. Therefore, the efficiency would be (100000 J / 400000 J) x 100% = 25%.
How does the kinetic energy of a bicycle contribute to its overall efficiency and performance?
The kinetic energy of a bicycle, which is the energy it has due to its motion, contributes to its overall efficiency and performance by helping it maintain speed and overcome resistance. When a cyclist pedals, the kinetic energy generated helps propel the bike forward, making it easier to ride and increasing its efficiency. Additionally, the kinetic energy allows the bike to maintain momentum, making it easier to climb hills and navigate obstacles. Overall, the kinetic energy of a bicycle plays a crucial role in enhancing its performance and efficiency.
When potential energy is converted to kinetic energy can it be reversible?
Kinetic energy can be reconverted into potantial energy, but not with 100% efficiency. Some energe is lost in the process.
When you increase the height of a ramp which increases the angle does the efficiency for kinetic energy increase of decrease?
When you increase the height of a ramp, the efficiency for kinetic energy decreases because you are doing work against gravity to lift the object higher. This means less of the initial potential energy is converted into kinetic energy compared to when the ramp is lower.
What is the efficiency of a tidal power plant?
Water energy (kinetic energy) to mechanical energy to electrical energy!
What is the effiency of a motor that converts100j of electrical energy into 70j of useful kinetic energy?
The efficiency of the motor can be calculated as the ratio of useful output energy to input energy. In this case, the efficiency would be 70J (useful kinetic energy) divided by 100J (electrical energy) multiplied by 100% to get a percentage. So, the efficiency of the motor is 70%.
What is kinetic energy of a 2000-kg car moving at 20 ms?
kinetic energy is 1/2mv^2, our velocity is 20 m/s , our mass is 2000 kg. Plugging it in you get 1/2 (2000) (400) = 1000 * 400 = 400000 joules
What is the effect of kinetic friction on a block and pulley system when determining the overall efficiency of the system?
Kinetic friction in a block and pulley system reduces the efficiency by converting some of the mechanical energy into heat. This results in a decrease in the overall efficiency of the system as some of the input energy is lost due to friction.
How kinetic energy and thermal are related?
Almost directly. Kinetic energy can be converted to thermal energy quickly by rubbing your hands together. You can convert thermal energy to kinetic energy by popping some popcorn. The efficiency of a kinetic machine like, for instance, a motor, is measured by how much heat it gives off. The hotter it gets, the more kinetic energy is lost as thermal energy and the less efficient the motor is.
Energy an object has due to its motion?
kinetic energyThe energy of motion is kinetic energy.
Kinetic energy is the energy of?
Motion.
The kinetic energy of a substance is the what kinetic energy of its particles?
The kinetic energy of a substance is the average kinetic energy of its particles.
