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

Author Question: Spectra of stars often show narrow absorption lines from interstellar matter. What type of ... (Read 27 times)

formula1

  • Hero Member
  • *****
  • Posts: 666
on: Jul 27, 2018
Spectra of stars often show narrow absorption lines from interstellar matter. What type of interstellar matter produces these?
 
  A) dust
  B) neutral gas
  C) ionized gas
  D) molecules
  E) All of the above.

Question 2

Einstein's ________ is a candidate for the dark energy that would be a repulsive force that may exist throughout space, and accelerate the expansion of the universe.
 
  Fill in the blank(s) with correct word


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

bdobbins

  • Sr. Member
  • ****
  • Posts: 326
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

cosmological constant


formula1

  • Member
  • Posts: 666
Reply 2 on: Jul 27, 2018
:D TYSM

nanny

  • Member
  • Posts: 313
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

According to the Migraine Research Foundation, migraines are the third most prevalent illness in the world. Women are most affected (18%), followed by children of both sexes (10%), and men (6%).

Did you know?

Many medications that are used to treat infertility are injected subcutaneously. This is easy to do using the anterior abdomen as the site of injection but avoiding the area directly around the belly button.

Did you know?

All adverse reactions are commonly charted in red ink in the patient's record and usually are noted on the front of the chart. Failure to follow correct documentation procedures may result in malpractice lawsuits.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

With all vacuum lines and the intake tube removed, the valve cover can be removed after removing all ... With all vacuum lines and the intake tube removed, the valve cover can be removed after removing all ...
Shutoff valves must be used on vehicles equipped with plastic fuel lines to isolate the cause of a ... Shutoff valves must be used on vehicles equipped with plastic fuel lines to isolate the cause of a ...
Action of a type I topoisomerase Action of a type I topoisomerase
Lines of the anterior thorax Lines of the anterior thorax
How Many Triangles Can You Make Using the Letter M and 3 Straight Lines? How Many Triangles Can You Make Using the Letter M and 3 Straight Lines?
A melting profile shows the increase in UV absorption versus temperature A melting profile shows the increase in UV absorption versus temperature
Video: Embryonic development - week 1 and 2

For a complete list of videos, visit our video library