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 415 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?

The FDA recognizes 118 routes of administration.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

For a complete list of videos, visit our video library