« previous next »

Author Question: A heat engine operating at maximum efficiency has an efficiency of 25. The temperature of the cold ... (Read 53 times)

maegan_martin

  • Hero Member
  • *****
  • 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

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

The top five reasons that children stay home from school are as follows: colds, stomach flu (gastroenteritis), ear infection (otitis media), pink eye (conjunctivitis), and sore throat.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Regulation of heat exchange in the skin. Regulation of heat exchange in the skin.
Enzyme activity is affected substantially by temperature Enzyme activity is affected substantially by temperature
Body Temperature Responses Body Temperature Responses
Most air filter housings are located on the side of the engine compartment and use flexible rubber ... Most air filter housings are located on the side of the engine compartment and use flexible rubber ...
Cold sores or fever blisters. Cold sores or fever blisters.
Temperature Regulation by the Hypothalamus Temperature Regulation by the Hypothalamus
Video: Carpal Tunnel Syndrome

For a complete list of videos, visit our video library