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Author Question: A heat engine operating at maximum efficiency has an efficiency of 25. The temperature of the cold ... (Read 112 times)

maegan_martin

  • Hero Member
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  • Posts: 532
on: Jul 29, 2018
A heat engine operating at maximum efficiency has an efficiency of 25. The temperature of the cold reservoir is 300 K. What is the temperature of the hot reservoir?
 
  A) 350 K
  B) 375 K
  C) 400 K
  D) 450 K
  E) 500 K

Question 2

A series RLC circuit has a 100- resistor, a 0.100-F capacitor, and a 2.00-mH inductor connected across a 120-V rms ac source operating at (1000/) Hz. What is the rms voltage across the inductor?
 
  A) 120 mV
  B) 87.1 mV
  C) 302 mV
  D) 96.1 mV
  E) 200 mV


steff9894

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  • Posts: 337
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

D


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