This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Two stars, Fred and Barney, are of the same size. Fred has spectral type F, while Barney has ... (Read 200 times)

corkyiscool3328

  • Hero Member
  • *****
  • Posts: 539
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.


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
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

  • Hero Member
  • *****
  • Posts: 539
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


jliusyl

  • Sr. Member
  • ****
  • Posts: 328
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

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?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Relationship between body size and seed size in Galapagos finch species Relationship between body size and seed size in Galapagos finch species
The Indian palm squirrel is the most common type of squirrel found in India. The Indian palm squirrel is the most common type of squirrel found in India.
The effective temperature, or black body temperature, of the Sun (5777 K) is the temperature a black The effective temperature, or black body temperature, of the Sun (5777 K) is the temperature a black
Stars and the Interstellar Medium Stars and the Interstellar Medium
Relative Size of the Body’s Fluid Compartments Relative Size of the Body’s Fluid Compartments
Europe’s Size and Location Europe’s Size and Location
Video: Transcription - Introns and exons

For a complete list of videos, visit our video library