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 130 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?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

Did you know?

A recent study has found that following a diet rich in berries may slow down the aging process of the brain. This diet apparently helps to keep dopamine levels much higher than are seen in normal individuals who do not eat berries as a regular part of their diet as they enter their later years.

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?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Ultraviolet mosaic of Mira's bow shock and tail obtained using NASA's Galaxy Evolution Exp Ultraviolet mosaic of Mira's bow shock and tail obtained using NASA's Galaxy Evolution Exp
Isotopes of Hydrogen Isotopes of Hydrogen
Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort Endocarditis. The human heart has been sectioned to reveal the left ventricle and origin of the aort
Peculiar Galaxy NGC 5128 (Centaurus A) Peculiar Galaxy NGC 5128 (Centaurus A)
A sample of 400 observations will be taken from an infinite population. The population ... A sample of 400 observations will be taken from an infinite population. The population ...
Human mitotic metaphase chromosomes are identified by size, centromere location, and banding pattern Human mitotic metaphase chromosomes are identified by size, centromere location, and banding pattern
Video: Uterine (menstrual) cycle - phases

For a complete list of videos, visit our video library