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

Author Question: Two stars, Fred and Barney, are of the same size. Fred has spectral type F, while Barney has ... (Read 215 times)

corkyiscool3328

  • Hero Member
  • *****
  • Posts: 539
Two stars, Fred and Barney, are of the same size. Fred has spectral type F, while Barney has spectral type B. Which one is more luminous? What are their relative locations on the HR diagram?
 
  What will be an ideal response?

Question 2

Which of the following statements are not falsiable? Being falsiable means that, in principle, it can be shown to be false by observations or experiments.
 
  A) Human beings were created by God.
  B) The Sun is at the center of the solar system.
  C) The observable universe contains about 100 billion galaxies.
  D) The Earth is at the center of the solar system.
  E) The chemical content of the universe is mostly hydrogen and helium.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jliusyl

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

Barney has a hotter surface temperature than Fred. Since they have the same surface area, Barney is also more luminous. Barney appears above and to the left of Fred.

Answer to Question 2

A



corkyiscool3328

  • Hero Member
  • *****
  • Posts: 539
Both answers were spot on, thank you once again



jliusyl

  • Sr. Member
  • ****
  • Posts: 328

 

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Patients who cannot swallow may receive nutrition via a parenteral route—usually, a catheter is inserted through the chest into a large vein going into the heart.

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

For a complete list of videos, visit our video library