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 60 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
Gracias!

lcapri7

  • Member
  • Posts: 350
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

Did you know?

Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

In most ecosystems, sunlight provides the ultimate source of energy to power all biological activity In most ecosystems, sunlight provides the ultimate source of energy to power all biological activity
Focusing Jets by Magnetic Fields Focusing Jets by Magnetic Fields
John Lewis Krimmel’s painting of the Fourth of July in Centre Square Philadelphia (1812) shows the d John Lewis Krimmel’s painting of the Fourth of July in Centre Square Philadelphia (1812) shows the d
Get feedback every 5 to 7 minutes about cold intensity. Massage other areas while cold source is on ... Get feedback every 5 to 7 minutes about cold intensity. Massage other areas while cold source is on ...
Fatty fish, such as salmon, are an excellent source of omega-3 fatty acids Fatty fish, such as salmon, are an excellent source of omega-3 fatty acids
Peanut butter is good source of protein Peanut butter is good source of protein
Video: Polymerase chain reaction PCR - Animation

For a complete list of videos, visit our video library