« previous next »

Author Question: Approximately how long does it take the sun to go through a full cycle of passing above and below ... (Read 24 times)

bucstennis@aim.com

  • Hero Member
  • *****
  • Posts: 532
on: Jul 27, 2018
Approximately how long does it take the sun to go through a full cycle of passing above and below the plane of the galaxy?
 
  A) a few million years B) a few tens of millions of years
  C) a few thousand years D) a few hundred years

Question 2

A star is observed with a surface temperature of 3,000 K and a lumi nosity of 105 solar. What is the approximate radius of this star?
 
  A) 10 solar radii B) 103 solar radii
  C) 102 solar radii D) The radius cannot be determined.


Dnite

  • Sr. Member
  • ****
  • Posts: 297
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.

Did you know?

The FDA recognizes 118 routes of administration.

RNA Virus Life Cycle RNA Virus Life Cycle
Soil and the Carbon Cycle Soil and the Carbon Cycle
Use a full hand/flat of fingers to apply L stroke to face, below the eye and to the edge of the ... Use a full hand/flat of fingers to apply L stroke to face, below the eye and to the edge of the ...
Long-term relationships, especially those who are married, having a child Long-term relationships, especially those who are married, having a child
Average real hourly wages (2010 dollars) by education level, full-time workers aged 17 to 34 in 2011 Average real hourly wages (2010 dollars) by education level, full-time workers aged 17 to 34 in 2011
Summer squash exhibiting various fruit-shape phenotypes, including disc, long, and sphere Summer squash exhibiting various fruit-shape phenotypes, including disc, long, and sphere
Video: Rods and Cones Animation

For a complete list of videos, visit our video library