This topic contains a solution. Click here to go to the answer

Author Question: Which of the following is a consequence of the laws of thermodynamics? A.Heat can be completely ... (Read 39 times)

Starlight

  • Hero Member
  • *****
  • Posts: 567
Which of the following is a consequence of the laws of thermodynamics?
  A.Heat can be completely changed into work
  B.Heat transfers from a cold object to a hot object until equilibrium is reached
 

C.Atoms can be at any temperature, even absolute zero
  D.Work can be completely changed into heat



Question 2

Which of the following scientists is most directly responsible for ushering in the communications age in the 20th century?
 
  A. Galileo
 

B. Newton
  C. Maxwell
  D. Michelson
  E. Carnot


 



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cat123

  • Sr. Member
  • ****
  • Posts: 310
Answer to Question 1

Work can be completely changed into heat by the second law of thermodynamics. Heat engines with 100 efficiency are prohibited, but the prohibited part is changing heat into work. To understand this example, imagine dragging a box along the ground with a constant force. The work put into the system accelerates the box against the force of friction, but eventually friction slows the box to a complete stop. The friction basically turns the energy of the box into heat.

Answer to Question 2

Maxwell's work in unifying the equations for electricity and magnetism helped bring about many of the innovations dealing with electromagnetic radiation that make our lives easier on a daily basis. His work helped with the development of fiber optic communication that makes nearly instantaneous global connection possible



Starlight

  • Hero Member
  • *****
  • Posts: 567
Both answers were spot on, thank you once again



cat123

  • Sr. Member
  • ****
  • Posts: 310

 

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

For a complete list of videos, visit our video library