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If 100J of energy are required to draw a bow what is the kinetic energy of the arrow at the moment of release?
At the moment of release, all the energy stored in the bow (100J) is converted to the kinetic energy of the arrow. So, the kinetic energy of the arrow at that moment is 100J.
What is the efficiency of a motor that converts 100J of electric energy into 70j of useful energy?
The efficiency of the motor can be calculated by dividing the useful energy output by the total energy input and multiplying by 100. In this case, the efficiency would be 70J (useful energy output) divided by 100J (total energy input) = 0.7 or 70%.
If a reading lamp converts 100J of electrical energy into 20J of light how efficient is the lamp?
Eff = Output/Input.
Water is heated by gas in a boiler. The water is put in a tank. For every 111J of energy released by the gas 100j of energy is taken in by the boiler. What is the percentage efficiency off the boiler?
The efficiency of the boiler is calculated as the ratio of useful energy output (100J) to the total energy input (111J), which is then multiplied by 100 to get the percentage. So, efficiency = (100/111) * 100 = 90.09%.
According to the work-energy theorem in the absence of friction if you do 100 J of work on a cart you'll increase its kinetic energy by?
The work-energy theorem states that the work done on an object is equal to the change in its kinetic energy. Therefore, if you do 100 J of work on a cart with no friction, its kinetic energy will increase by the same amount, resulting in a total kinetic energy increase of 100 J.
Put in order from smallest to biggest 10000j 100j 20j 1j 200kJ 2kJ?
2,20,100,200,10000
A heat engine takes in 100J of energy from the high temperature reservoir and expels 80J into the low temperature reservoir so how much work was done by the engine?
a lot.
What is the potential energy of a 2kg vase sitting on a table with a height of 1 meter?
The gravitational potential energy of a 2kg object 1m off the ground is 2kg × g × 1m = 19.6J, where g is the acceleration at 9.8m/sec2.
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%.
Can a light bulb use 88j of power to produce 100j of light?
yes it can
How much power is required to do 100J of work on an object when a force of 10N pushes it a distance of 10m?
A force of 10 newtons acting through a distance of 10 meters does 100 joules of work. Power is defined as the rate at which that work is done. So the power during the push is (100) divided by (the number of seconds the push lasts). Doing the job in less time indicates more power, just as you'd expect. But the total energy delivered is still 100 joules, regardless of how slowly or quickly it's delivered.
A man expends 100j of work to move a box up an inclined plane the amount of work produced is 80j what is the efficiency?
50
