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Author Question: What is the maximum efficiency of an engine operating between 500 K and 300 K? A) 20 B) 30 C) ... (Read 109 times)

MGLQZ

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on: Jul 29, 2018
What is the maximum efficiency of an engine operating between 500 K and 300 K?
 
  A) 20
  B) 30
  C) 40
  D) 50
  E) 60

Question 2

A spaceship carrying a light clock moves at a speed of 0.960c relative to an observer on Earth. Relative to a frame of reference that is fixed with respect to Earth, how long does it take the clock on the ship to advance 1.00 s?
 
  A) 0.960 s
  B) 1.22 s
  C) 2.59 s
  D) 3.57 s
  E) 5.83 s


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tranoy

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

C

Answer to Question 2

D


MGLQZ

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


tranoy

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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