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 81 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?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

The Pleiades, an open cluster of stars in the constellation of Taurus. The Pleiades, an open cluster of stars in the constellation of Taurus.
Prolapsed uterus. (a) A prolapse is the abnormal drop of the uterus into the vagina, representing th Prolapsed uterus. (a) A prolapse is the abnormal drop of the uterus into the vagina, representing th
The Types of Stars and Their Sizes The Types of Stars and Their Sizes
Stars and the Interstellar Medium Stars and the Interstellar Medium
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
Calculation of the probabilities in a mating involving the ABO blood type Calculation of the probabilities in a mating involving the ABO blood type
Video: Requirements for nervous signals

For a complete list of videos, visit our video library