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20. Which of the following improves the efficiency of a machine? Cal. Reducing friction b. Adding more energy c. Running it faster Increasing friction

20. Which of the following improves the efficiency of a machine? Cal. Reducing friction b. Adding more energy c. Running it faster Increasing friction
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20. Which of the following improves the efficiency of a machine?

Cal. Reducing friction
b. Adding more energy
c. Running it faster
Increasing friction

asked
User Paradigmatic
by
8.6k points

1 Answer

5 votes
Reducing friction increases efficiency.
answered
User Mrhands
by
8.3k points
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