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Author Question: A thermodynamic engine has an efficiency of 31.4 and receives 8.72 kJ of energy per cycle. (a) How ... (Read 69 times)

luvbio

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on: Jul 29, 2018
A thermodynamic engine has an efficiency of 31.4 and receives 8.72 kJ of energy per cycle. (a) How much work does it perform in each cycle? (b) How much energy does it exhaust in each cycle?
 
  What will be an ideal response?

Question 2

The distance between the ruled lines on a grating is 1900 nm. The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band.
 
  What is the angular width of the gap between the first order spectrum and the second order spectrum?
  A) 3.3
  B) 4.3
  C) 5.3
  D) 6.3
  E) 2.3


raenoj

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

(a) 2.74 Kj (b) 5.98 kJ

Answer to Question 2

A


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