This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A 100 million-year-old open cluster will no longer contain any O-type stars. Indicate whether the ... (Read 32 times)

j.rubin

  • Hero Member
  • *****
  • Posts: 557
on: Jul 27, 2018
A 100 million-year-old open cluster will no longer contain any O-type stars.
 
  Indicate whether the statement is true or false

Question 2

What do we mean when we say that the rotation curve for a spiral galaxy is flat?
 
  A) Gas clouds orbiting far from the galactic center have approximately the same orbital speed as gas clouds located further inward.
  B) The amount of light emitted by stars at different distances is about the same throughout the galaxy.
  C) All the galaxy's mass is concentrated in its flat, gaseous disk.
  D) The disk of a spiral galaxy is quite flat rather than spherical like the halo.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

emilymalinowski12

  • Sr. Member
  • ****
  • Posts: 338
Reply #1 on: Jul 27, 2018
Answer to Question 1

TRUE

Answer to Question 2

A


j.rubin

  • Hero Member
  • *****
  • Posts: 557
Reply #2 on: Jul 27, 2018
Thanks


emilymalinowski12

  • Sr. Member
  • ****
  • Posts: 338
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

In 1844, Charles Goodyear obtained the first patent for a rubber condom.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Hong Kong is a strange situation. A British colony since 1842, it was handed back to China in 1997 a Hong Kong is a strange situation. A British colony since 1842, it was handed back to China in 1997 a
Henry Fox Talbot, The Open Door. Henry Fox Talbot, The Open Door.
Distribution of Thunderstorms: Approximately 14.5 million thunderstorms occur each year across the ... Distribution of Thunderstorms: Approximately 14.5 million thunderstorms occur each year across the ...
Overfished per year Overfished per year
People are living longer today than in previous decades People are living longer today than in previous decades
What type of online info about a job candidate should employment mgmt consider when screening What type of online info about a job candidate should employment mgmt consider when screening
Video: Egg and Sperm Formations in Animals Animation

For a complete list of videos, visit our video library