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If the work put into a lever is 930 joules and the work accomplished is 870 joules the efficiency of the lever is?
Laditazz
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What is the change in internal energy if 20 joules of heat is released from a system and the system does 50 joules of work on the surroundings?
-70 Joules
What is the time taken by a body to perform 440 Joules of work at rate of 11 watt?
11 watts = 11 joules per second(440 joules) / (11 joules per second) = 40 seconds
An object with a mass of 21 kg is lifted through a distance of 7 meters how much work is done?
Work = (force) x (distance) = 7 x 2.4 = 16.8 joules
What is the SI-Unit fir work?
SI unit for work is joules. It is written as J.
What is energy measure in units?
Energy is the ability to do work . It is measured in Joules.
What is the machine efficiency of a machine that produces 400 joules of work output from a work input of 500 joules?
The efficiency is 80%. To find the efficiency, 400/500 = 80%.
What is the mechanical efficiency of a machine that produces 400 joules of work output from work input of 500 joules?
The efficiency is 80%. To find the efficiency, 400/500 = 80%.
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.
Find the efficiency of a machine that does 800 joules of work if the input work is 2400 joules?
.33
What is the mechanical efficiency of a machine that produce 400 joules of work output from a work input of 500 joules?
The efficiency is 80%. To find the efficiency, 400/500 = 80%.
What is the efficiency of a machine that requires 100 joules of input energy to do 35 joules of useful work?
The machine efficiency is 35 percent (35/100).
How many joules of work would be accomplished if you move a 200 kg slug 10 meters?
2000 joules
What is the mechanical efficiency of a machine that produces 400 jouls of work output from a work input of 500 joules?
The efficiency is 80%. To find the efficiency, 400/500 = 80%.
A ramp is 30 meters long and 5 meters high 200 newtons of force must be applied by the mover to push a 1000 newton piano up the ramp?
What is the amount of work accomplished by the ramp? - 5000 joules What is the amount of work done by the mover? - 6000 joules What is the efficiency of the ramp? - 83%
What is the application of rational algebraic expression in real life situation?
Manufacturing. A machine has a work output of 14ax4 j (joules) and a work in put 7a2x5 j. What is the eficiency of the machine? efficiency in % = work output in joules work input in joules
How many joules of work would be accomplished if you moved a 200-kg rock 10 meters?
190
A machine requires a work input of 180-joules to achieve a work output of 140-joules. What is the efficiency of the machine?
94 percent (which is easily calculated, 3760/4000x100).
