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 196 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?

The most common childhood diseases include croup, chickenpox, ear infections, flu, pneumonia, ringworm, respiratory syncytial virus, scabies, head lice, and asthma.

Did you know?

The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

Did you know?

Your chance of developing a kidney stone is 1 in 10. In recent years, approximately 3.7 million people in the United States were diagnosed with a kidney disease.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

For a complete list of videos, visit our video library