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

Author Question: The source of all electromagnetic waves is A) changes in atomic energy levels. B) vibrating ... (Read 316 times)

imanialler

  • Hero Member
  • *****
  • Posts: 539
The source of all electromagnetic waves is
 
  A) changes in atomic energy levels.
  B) vibrating atoms and molecules.
  C) accelerating electric charges.
  D) crystalline fluctuations.
  E) none of the above

Question 2

In free space, electromagnetic waves travel at a
 
  A) variety of speeds.
  B) single speed.
  C) speed depending on frequency.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

TheNamesImani

  • Sr. Member
  • ****
  • Posts: 334
Answer to Question 1

Answer: C

Answer to Question 2

Answer: B



imanialler

  • Hero Member
  • *****
  • Posts: 539
Both answers were spot on, thank you once again




 

Did you know?

Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

For a complete list of videos, visit our video library