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Author Question: A thermodynamic engine receives 7000 J of energy and loses 3000 J in each cycle. What is the ... (Read 81 times)

ss2343

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  • Posts: 548
on: Jul 29, 2018
A thermodynamic engine receives 7000 J of energy and loses 3000 J in each cycle. What is the efficiency of this engine?
 
  A) 57
  B) 30
  C) 70
  D) 43

Question 2

Monochromatic light of wavelength 500 nm is incident normally on a grating. If the third-order maximum of the diffraction pattern is observed at 32 from the centerline, what is the distance between the slits of the grating?
 
  A) 0.93 m
  B) 1.4 m
  C) 2.8 m
  D) 8.5 m


trampas

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

A

Answer to Question 2

C


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