Author Question: In the condensation theory of the Moon's origin a. the Moon broke from a rapidly spinning Earth ... (Read 93 times)

brutforce

  • Hero Member
  • *****
  • Posts: 540
In the condensation theory of the Moon's origin
 
  a. the Moon broke from a rapidly spinning Earth
  b. the Earth and its Moon formed from the same cloud of matter
  c. the Moon formed elsewhere in the solar nebula and was later captured by Earth.
  d. the Moon formed when a very massive planetesimal smashed into the young Earth.

Question 2

___________ can be used to determine the galaxy's mass if the galaxy is reasonably close so that the Doppler shift of the galaxy disk material can be measured at several distances from the galaxy's center relative to the center.
 
  a. The Hubble constant
  b. A galaxy's color
  c. A galaxy's rotation curve
  d. A galaxy's diameter
  e. The velocity dispersion method



jackie

  • Sr. Member
  • ****
  • Posts: 324
Answer to Question 1

B

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

For a complete list of videos, visit our video library