Author Question: The rotation curve of the outer portions of the Galaxy revealed what about its mass? What will be ... (Read 89 times)

tiara099

  • Hero Member
  • *****
  • Posts: 588
The rotation curve of the outer portions of the Galaxy revealed what about its mass?
 
  What will be an ideal response?

Question 2

Essentially, the Great Red Spot is
 
  A) traveling north and south across Jupiter's face.
  B) composed primarily of iron oxide.
  C) a large cyclonic storm (hurricane).
  D) always located within 10 degrees of Jupiter's north pole.
  E) Neptune's largest atmospheric feature.



fur

  • Sr. Member
  • ****
  • Posts: 309
Answer to Question 1

The outer portions were moving faster than Keplerian motion, so the mass distribution is not like our centrally-focused solar system, but most of the mass lies farther out in vast amounts of dark matter.

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

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 seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

For a complete list of videos, visit our video library