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Which of the following statements is true? Friction moves in the same direction as motion Some machines are 100 percent efficient. Power measures the speed at which work is done. Windmills change circular
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Which of the following statements is true?

Friction moves in the same direction as motion

Some machines are 100 percent efficient.

Power measures the speed at which work is done.

Windmills change circular motion into straight motion.

User Alley
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Answer:

  1. Power measures the speed at which work is done.⊂⊃⊂∩⊃⊂⊂
User Obiwanjacobi
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