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A machine has an effciency of 91 percent if the energy is supplied to the machine is 4000 watts what is the amount being used for work?
The efficiency of a machine is given by the ratio of useful work output to the energy input. Therefore, if the machine has an efficiency of 91%, the amount being used for work would be 91% of the energy input. In this case, if the energy supplied is 4000 watts, the amount being used for work would be 0.91 * 4000 = 3640 watts.
What do you need to know to calculate the efficiency of a machine?
To calculate the efficiency of a machine, you need to know the amount of useful work output produced by the machine and the amount of total energy input supplied to the machine. Efficiency is calculated by dividing the useful work output by the total energy input and multiplying by 100 to express it as a percentage.
What is percent efficiency?
Percent efficiency is a measure of how well a system or process converts input resources into output results. It is calculated by dividing the actual output by the theoretical maximum output, then multiplying by 100 to express it as a percentage. A higher percent efficiency indicates a more effective use of resources in achieving desired outcomes.
What is comparing the amount of work you do to the amount of work the machine does?
Work efficiency compares the amount of work output by a person to the amount achieved by a machine. It calculates the effectiveness and productivity of both human labor and automated processes. A higher work efficiency indicates that the machine is performing a greater portion of the work, while lower efficiency implies human labor is more dominant.
How is the efficiency of a compound machine calculated?
The efficiency of a compound machine is calculated by dividing the output work of the machine by the input work. Mathematically, it can be expressed as Efficiency = (Output work / Input work) * 100%. It gives a measure of how well the machine converts input work into useful output work.
A machine has an efficiency of 91 percent If the energy supplied to the machine is watts what is the amount being used for work?
If the efficiency is 91%, then work = 0.91 times watts
A machine has an effciency of 91 percent if the energy is supplied to the machine is 4000 watts what is the amount being used for work?
The efficiency of a machine is given by the ratio of useful work output to the energy input. Therefore, if the machine has an efficiency of 91%, the amount being used for work would be 91% of the energy input. In this case, if the energy supplied is 4000 watts, the amount being used for work would be 0.91 * 4000 = 3640 watts.
What do you need to know to calculate the efficiency of a machine?
To calculate the efficiency of a machine, you need to know the amount of useful work output produced by the machine and the amount of total energy input supplied to the machine. Efficiency is calculated by dividing the useful work output by the total energy input and multiplying by 100 to express it as a percentage.
A machine has an efficiency of 91 percent if the enery supplied to the machine is 4000 watts what is the amount being used for work?
Turn the percentage into a decimal by dividing by 100: 91% --> .91Work out = (efficiency) * (work in)dividing by a unit of time gives =>Power out = (efficiency) * (power in)P_o = .91 * 4000 Watts = 3640 Watts
If the energy supplied to the machine is 4000 watts for 91 percent efficiency what is the amount being used for work?
The idea here is to calculate 91% of 4000. By the way, technically "watts" is not a unit of energy. It is a unit of power - that is, energy per unit time.
A motor with an efficiency of 75 percent must supply 240 J of useful work. What amount of work must be supplied to the motor?
At least 320 J
An ideal machine would have an efficiency of?
A ideal machine would have an efficiency of 100 percent. For this to be possible, the amount of energy output by the machine would equal the amount of energy input. Because all machines have physical parts, some energy is lost to friction, heat dissipation, or other factors, so no machine can be an ideal machine.
Efficiency of a machine is?
The amount of energy used in a certain amount of time and the expense.
How do you calculate the efficiency of a equipment?
you take the fuel consumption times the amount of matter moved, then you divide the PRODUCT OF THAT BY THE WEIGHT OF THE MACHINE. answer should show up in a percent
What is percent efficiency?
Percent efficiency is a measure of how well a system or process converts input resources into output results. It is calculated by dividing the actual output by the theoretical maximum output, then multiplying by 100 to express it as a percentage. A higher percent efficiency indicates a more effective use of resources in achieving desired outcomes.
What is comparing the amount of work you do to the amount of work the machine does?
Work efficiency compares the amount of work output by a person to the amount achieved by a machine. It calculates the effectiveness and productivity of both human labor and automated processes. A higher work efficiency indicates that the machine is performing a greater portion of the work, while lower efficiency implies human labor is more dominant.
How is the efficiency of a compound machine calculated?
The efficiency of a compound machine is calculated by dividing the output work of the machine by the input work. Mathematically, it can be expressed as Efficiency = (Output work / Input work) * 100%. It gives a measure of how well the machine converts input work into useful output work.
