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Author Question: Two stars, Fred and Barney, are of the same size. Fred has spectral type F, while Barney has ... (Read 218 times)

corkyiscool3328

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on: Jul 27, 2018
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.


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jliusyl

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Reply #1 on: Jul 27, 2018
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

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Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


jliusyl

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Reply #3 on: Jul 27, 2018
Great! Please up vote :D


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