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 21 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?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Eating food that has been cooked with poppy seeds may cause you to fail a drug screening test, because the seeds contain enough opiate alkaloids to register as a positive.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

For a complete list of videos, visit our video library