Question

only brainly can do this

Answer 1

Hey dear here is your answer!!!!!

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This concept can be observed in machines or engines due to following reasons:-

1. Engines work on the concept that they create a flow of energy from high potential to a lower potential. So, it allows machine to extract energy from this difference in pressure.

2. A real life machine also has to overcome certain factors such as resistance and friction so a bit of energy is lost in overcoming these factors.

❣️⭐ Hope it helps u dear...⭐⭐❣️❣️

Answer 2

ANSWER......


Lubrication a machine increases the outputforce because it decreases friction. Explain why in a real machine the output work is always less than the input work. In a real machine, some of the input work is converted into thermal energy by friction.