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Author Question: A machine puts out 100 watts of power for every 1000 watts put into it. The efficiency of the ... (Read 246 times)

maychende

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A machine puts out 100 watts of power for every 1000 watts put into it. The efficiency of the machine is
 
  A) 10.
  B) 50.
  C) 90.
  D) 110.
  E) none of the above

Question 2

A hydraulic press, like an inclined plane, is capable of increasing energy.
 
  A) sometimes true
  B) always false
  C) always true
  D) sometimes false



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chjcharjto14

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Answer to Question 1

Answer: A

Answer to Question 2

Answer: B





 

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