This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of the following best describes why we say that light is an electromagnetic wave? A) The ... (Read 33 times)

darbym82

  • Hero Member
  • *****
  • Posts: 570
on: Jul 27, 2018
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
Reply #1 on: Jul 27, 2018
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 :)

alvinum

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

The B-complex vitamins and vitamin C are not stored in the body and must be replaced each day.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Most fungi that pathogenically affect humans live in soil. If a person is not healthy, has an open wound, or is immunocompromised, a fungal infection can be very aggressive.

Did you know?

Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Structure of an antibody light chain Structure of an antibody light chain
The Speed of Light Is Constant The Speed of Light Is Constant
Using a black light to spot leaks after adding dye to the oil. Using a black light to spot leaks after adding dye to the oil.
Slap the foot bottom with the back of the hand. Rapid, light slaps create a stimulating sensation. Slap the foot bottom with the back of the hand. Rapid, light slaps create a stimulating sensation.
Tap the head. Apply light fingertip tapotement to the head: top, sides, and back. Tap the head. Apply light fingertip tapotement to the head: top, sides, and back.
The Visible Spectrum of Electromagnetic Energy The Visible Spectrum of Electromagnetic Energy
Video: Requirements for nervous signals

For a complete list of videos, visit our video library