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Except for a technical joke about electric heaters (all the losses are heat)

some energy is always lost due to friction (or its equivalent),

The word is entropy.

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Q: Why the work output is always less than the work input?
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Why is always work output less than work input?

Work output is always less than work input because some work is lost to friction and heat which is created in the process of physics.


Why is work output always less than work input?

Work output is always less than work input because some work is lost to friction and heat which is created in the process of physics.


Why is the work output of a machine always less than the work input?

In a real machine, the output work is always less because input energy will be converted to heat energy and lost.


When a machince is used to perform a task work output is always what than work input?

Work output is always less than work input. This is related to the Law of Conservation of Energy.


Why is a machines output work always less than its input work?

Because it is


Why is the output work always less than the input work for a real machine?

because output work is input work divided by two


Why is work output is always less than work output?

Work output is always less than work input because some work is lost to friction and heat which is created in the process of physics.


When a mechine does work on an object the output work is?

always less than the input work


What is the reason a machine's output work is always less than the input force?

Entropy.


Why input current of USis less than Output current?

Why input current of USis less than Output current?


What is value creation?

every input has some value but the output is always less than the input this is called value creation


What is value-creation?

every input has some value but the output is always less than the input this is called value creation