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

Author Question: If the magnitude difference between one star and another is 8, the stars differ in brightness by a ... (Read 54 times)

humphriesbr@me.com

  • Hero Member
  • *****
  • Posts: 550
on: Jul 28, 2018
If the magnitude difference between one star and another is 8, the stars differ in brightness by a factor of
 a. 2.51.
  b. 20.
  c. 7.
  d. 1580.

Question 2

When many of the atoms or molecules in a sample have been excited into a metastable state, a(n) ______________ has occurred.
 a. ultraviolet catastrophe
  b. population inversion
  c. coherent emission
  d. incoherent absorption


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

enass

  • Sr. Member
  • ****
  • Posts: 380
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

b


humphriesbr@me.com

  • Hero Member
  • *****
  • Posts: 550
Reply #2 on: Jul 28, 2018
Thanks


enass

  • Sr. Member
  • ****
  • Posts: 380
Reply #3 on: Jul 28, 2018
Welcome :)


« previous next »
 

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.

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?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

Although puberty usually occurs in the early teenage years, the world's youngest parents were two Chinese children who had their first baby when they were 8 and 9 years of age.

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Rising and Setting of Stars at the Equator Rising and Setting of Stars at the Equator
Radial and Transverse Velocities of a Star Radial and Transverse Velocities of a Star
Stars and the Interstellar Medium Stars and the Interstellar Medium
Mass Loss from a Supermassive Star Mass Loss from a Supermassive Star
Magnitude of Geologic Time Magnitude of Geologic Time
Difference-Between-Carbohydrates-and-Lipids-infographic Difference-Between-Carbohydrates-and-Lipids-infographic
Video: Major Elements in Biological Molecules: Lipids

For a complete list of videos, visit our video library