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

Author Question: The source of magnetism is a. polarization. b. magnetic monopoles. c. electrons. d. ... (Read 57 times)

PhilipSeeMore

  • Hero Member
  • *****
  • Posts: 561
on: Jul 28, 2018
The source of magnetism is
 a. polarization.
  b. magnetic monopoles.
  c. electrons.
  d. protons.

Question 2

A concave mirror has a focal length of 20 cm. What is the magnification if the object and image distances are 10 cm and 20 cm respectively?
 a. 1
  b. 2
  c. 1/2
  d. 1/4
  e. 1/2


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

gabrielle_lawrence

  • Sr. Member
  • ****
  • Posts: 353
Reply #1 on: Jul 28, 2018
Answer to Question 1

c

Answer to Question 2

b


PhilipSeeMore

  • Member
  • Posts: 561
Reply 2 on: Jul 28, 2018
Thanks for the timely response, appreciate it

cici

  • Member
  • Posts: 325
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

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?

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?

The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.

Did you know?

Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Ammonium as an energy source for chemoautotrophic bacteria in soil. Ammonium as an energy source for chemoautotrophic bacteria in soil.
Otitis media. This illustration shows an inflamed tympanic cavity, which is the most common source o Otitis media. This illustration shows an inflamed tympanic cavity, which is the most common source o
Transcranial Magnetic Stimulation Transcranial Magnetic Stimulation
Timing of teratogens. Vulnerability to teratogens is greatest in the embryonic period. Source: Moore Timing of teratogens. Vulnerability to teratogens is greatest in the embryonic period. Source: Moore
Cover heat source to slow cooling by placing a towel over it. Cover heat source to slow cooling by placing a towel over it.
What is the total number of valence electrons in a silicate ion, SiO32-? What is the total number of valence electrons in a silicate ion, SiO32-?
Video: Types of energy transfer reactions: oxidation-reduction reactions and ATP generation reactions

For a complete list of videos, visit our video library