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Author Question: An engine on each cycle takes in 40. Joules, does 10. Joules of work, and expels 30. J of heat. What ... (Read 185 times)

cherise1989

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on: Jul 29, 2018
An engine on each cycle takes in 40. Joules, does 10. Joules of work, and expels 30. J of heat. What is its efficiency?
 
  What will be an ideal response?

Question 2

The inductive reactance of a 20-mH inductor at a certain frequency is 120 . What is the frequency in rad/s?
 
  A) 2000 rad/s
  B) 4000 rad/s
  C) 5000 rad/s
  D) 6000 rad/s
  E) 7000 rad/s


Zebsrer

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Reply #1 on: Jul 29, 2018
Answer to Question 1

eff = 25

Answer to Question 2

D


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