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 117 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
:D TYSM

kjohnson

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

Why leaves are green: interaction of light with chloroplasts. Why leaves are green: interaction of light with chloroplasts.
Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int
Pairs of heavy and light chains combine to form a Y-shaped molecule Pairs of heavy and light chains combine to form a Y-shaped molecule
Wave Properties Wave Properties
The inhibitory response of rods to light. When light bleaches rhodopsin molecules, the rods’ ... The inhibitory response of rods to light. When light bleaches rhodopsin molecules, the rods’ ...
Massage the feet. Finish with light connecting strokes over the entire leg. Redrape the leg. Massage the feet. Finish with light connecting strokes over the entire leg. Redrape the leg.
Video: Phases of the Female Reproductive Cycle - Hormonal regulation

For a complete list of videos, visit our video library