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

Author Question: Which of the following best describes why we say that light is an electromagnetic wave? A) The ... (Read 115 times)

darbym82

  • Hero Member
  • *****
  • Posts: 570
Which of the following best describes why we say that light is an electromagnetic wave?
 
  A) The passage of a light wave can cause electrically charged particles to move up and down.
  B) Light can be produced only by electric or magnetic appliances.
  C) The term electromagnetic wave arose for historical reasons, but we now know that light has nothing to do with either electricity or magnetism.
  D) Light is produced only when massive fields of electric and magnetic energy collide with one another.

Question 2

Based on current evidence, a supercluster is most likely to have formed in regions of space where ________.
 
  A) the acceleration of the expansion was proceeding faster than elsewhere
  B) the density of dark matter was slightly higher than average when the universe was very young
  C) supermassive black holes were present in the very early universe
  D) there was an excess concentration of hydrogen gas when the universe was very young



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lin77x

  • Sr. Member
  • ****
  • Posts: 326
Answer to Question 1

A

Answer to Question 2

B




darbym82

  • Member
  • Posts: 570
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


hramirez205

  • Member
  • Posts: 345
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

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 U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

For a complete list of videos, visit our video library