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How do you work out the number of joules of wasted energy in a TV?
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What is the efficiency of a pulley system when its work out equals 100 joules and its work in equals 150 joules?
If the input energy is 210 joules and the efficiency of the system is 30%,then the output energy is30% of 210 = (0.3 x 210) = 63 joules.
What could joules be used to measure with?
Joules are used to measure energy. Also the related concept of work, which can be thought of as the transfer of energy.
How much power does it take to do 104j of work in 60 seconds?
Power (Watts) is Joules (energy) per Second (time) so divide the number of joules by the number of seconds. 104/60 = 1.733 Watts
What is the change in the internal energy of a system that does 400 joules of work and absorbs 700 joules of heat?
400 joules.
Energy and work are measured in the SI unit called the?
Energy and work are measured in joules.
What is energy and work measeured in?
Both energy and work are measured in joules.
What power was used if it took 2s?
If work or energy was exerted or transferred in 2 seconds,then the power was(1/2) x (the number of joules of work or energy) watts.
What is the rate at which work is done?
Work is energy, measured in joules. The rate of work, or joules per second, is known as watts, or power.
What is the unit that energy is measured in?
Energy is the ability to do work. It is measured in joules.
What is energy measure in units?
Energy is the ability to do work . It is measured in Joules.
What is the efficiency of a pulley system when its work out equals 100 joules and its work in equals 150 joules?
If the input energy is 210 joules and the efficiency of the system is 30%,then the output energy is30% of 210 = (0.3 x 210) = 63 joules.
Is it true that energy is measured in joules?
Yes, but it might be confusing to some, because it is also the unit for work. To do 100 joules of work, you need 100 joules of energy. See related link for more detail.
What is the rate at which what is done?
Work is energy, measured in joules. The rate of work, or joules per second, is known as watts, or power.
What units are used to express energy and work?
joules
What is the measured unit in work?
If you mean work as in energy it is joules (j).
What could joules be used to measure with?
Joules are used to measure energy. Also the related concept of work, which can be thought of as the transfer of energy.
How much power does it take to do 104j of work in 60 seconds?
Power (Watts) is Joules (energy) per Second (time) so divide the number of joules by the number of seconds. 104/60 = 1.733 Watts
