Author Question: Mercury is more than 60 percent denser than the Moon. a. True b. False Indicate whether the ... (Read 75 times)

berenicecastro

  • Hero Member
  • *****
  • Posts: 581
Mercury is more than 60 percent denser than the Moon.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 2

Why are massive stars more luminous than low mass stars? That is, why is there a mass-luminosity relation?
 
  What will be an ideal response?



mtmmmmmk

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

True

Answer to Question 2

The mass-luminosity relation exists because stars must support their weight be generating energy. Stars support their weight by generating more energy, and more massive stars have more weight to support.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Many of the drugs used by neuroscientists are derived from toxic plants and venomous animals (such as snakes, spiders, snails, and puffer fish).

Did you know?

Never take aspirin without food because it is likely to irritate your stomach. Never give aspirin to children under age 12. Overdoses of aspirin have the potential to cause deafness.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

For a complete list of videos, visit our video library