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

Author Question: CO observations of the galaxy reveal a. the location of dense neutral hydrogen clouds. b. the ... (Read 66 times)

tnt_battle

  • Hero Member
  • *****
  • Posts: 556
on: Jul 27, 2018
CO observations of the galaxy reveal
 
  a. the location of dense neutral hydrogen clouds.
  b. the location of population II stars.
  c. the location of population I stars.
  d. the location of the galactic corona.
  e. the location of giant molecular clouds.

Question 2

If a star's spectrum does not contain spectral lines characteristic of a certain element, can we conclude that the star does not contain that element? Why or why not?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

guyanai

  • Sr. Member
  • ****
  • Posts: 349
Reply #1 on: Jul 27, 2018
Answer to Question 1

e

Answer to Question 2

We cannot conclude this, because it might be that the star is too hot or too cool for the electrons in a particular element to absorb photons.


tnt_battle

  • Hero Member
  • *****
  • Posts: 556
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


guyanai

  • Sr. Member
  • ****
  • Posts: 349
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

Did you know?

Chronic necrotizing aspergillosis has a slowly progressive process that, unlike invasive aspergillosis, does not spread to other organ systems or the blood vessels. It most often affects middle-aged and elderly individuals, spreading to surrounding tissue in the lungs. The disease often does not respond to conventionally successful treatments, and requires individualized therapies in order to keep it from becoming life-threatening.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

These top and side views reveal the R groups extending out from the β sheet and emphasize These top and side views reveal the R groups extending out from the β sheet and emphasize
Mammatus clouds Mammatus clouds
Cloud Types: Middle Clouds Cloud Types: Middle Clouds
Anatomical terms for location and direction. Anatomical terms for location and direction.
Cold, dense water accumulates around the Arctic and Antarctic Cold, dense water accumulates around the Arctic and Antarctic
If 250. L of nitrogen reacts with 582 L of hydrogen by the reaction: N2(g) + 3 H2(g) 2 NH3(g), ... If 250. L of nitrogen reacts with 582 L of hydrogen by the reaction: N2(g) + 3 H2(g) 2 NH3(g), ...
Video: Genetic distance between human groups

For a complete list of videos, visit our video library