This topic contains a solution. Click here to go to the answer

Author Question: Why does a star's luminosity drop so much during the Hayashi track? What will be an ideal ... (Read 12 times)

amal

  • Hero Member
  • *****
  • Posts: 572
Why does a star's luminosity drop so much during the Hayashi track?
 
  What will be an ideal response?

Question 2

What are the main constituents of the solar wind?
 
  What will be an ideal response?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

adammoses97

  • Sr. Member
  • ****
  • Posts: 337
Answer to Question 1

The surface of the star maintains a fairly constant temperature but the size continues to shrink significantly. Since the luminosity depends on the square of the radius, as the radius decreases by a factor of 100, the luminosity drops by a factor of 10,000. The slight increase in surface temperature changes the luminosity only a little.

Answer to Question 2

Protons and electrons are the main constituents of the solar wind.




amal

  • Member
  • Posts: 572
Reply 2 on: Jul 27, 2018
Great answer, keep it coming :)


Jossy

  • Member
  • Posts: 336
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

For a complete list of videos, visit our video library