Author Question: The mirrors for X-ray telescopes are the same shape as those of optical reflectors. Indicate ... (Read 24 times)

Jipu 123

  • Hero Member
  • *****
  • Posts: 569
The mirrors for X-ray telescopes are the same shape as those of optical reflectors.
 
  Indicate whether the statement is true or false

Question 2

Why is a dense cloud more likely to produce an elliptical galaxy than a spiral galaxy?
 
  A) The higher density of gas has a stronger force of gravity, and therefore the cloud collapses more quickly.
  B) The thickness of the dense cloud prevents a disk from forming.
  C) The higher gas density forms stars more efficiently, so all the gas is converted into stars before a disk can form.
  D) The force of gravity can pull the material into a more spherical shape.
  E) The more frequent collisions between particles randomize the particle orbits.



lolol

  • Sr. Member
  • ****
  • Posts: 330
Answer to Question 1

FALSE

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Did you know?

Green tea is able to stop the scent of garlic or onion from causing bad breath.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

For a complete list of videos, visit our video library