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

Author Question: Which of the following best describes the axes of a Hertzsprung-Russell (H-R) diagram? A) mass on ... (Read 84 times)

leo leo

  • Hero Member
  • *****
  • Posts: 566
Which of the following best describes the axes of a Hertzsprung-Russell (H-R) diagram?
 
  A) mass on the horizontal axis and luminosity on the vertical axis
  B) surface temperature on the horizontal axis and luminosity on the vertical axis
  C) mass on the horizontal axis and stellar age on the vertical axis
  D) interior temperature on the horizontal axis and mass on the vertical axis
  E) surface temperature on the horizontal axis and radius on the vertical axis

Question 2

Which of the following statements about scientific models is true?
 
  A) A model can be used to explain and predict real phenomena.
  B) All current models are correct.
  C) A model tries to represent all aspects of nature.
  D) A model tries to represent only one aspect of nature.
  E) All models that explain nature well are correct.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

cat123

  • Sr. Member
  • ****
  • Posts: 310
Answer to Question 1

B

Answer to Question 2

A



leo leo

  • Hero Member
  • *****
  • Posts: 566
Both answers were spot on, thank you once again



cat123

  • Sr. Member
  • ****
  • Posts: 310

 

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Disorders that may affect pharmacodynamics include genetic mutations, malnutrition, thyrotoxicosis, myasthenia gravis, Parkinson's disease, and certain forms of insulin-resistant diabetes mellitus.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

For a complete list of videos, visit our video library