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

Author Question: If the density is less than critical, which fate of the universe awaits us? What will be an ideal ... (Read 26 times)

justinmsk

  • Hero Member
  • *****
  • Posts: 524
on: Jul 27, 2018
If the density is less than critical, which fate of the universe awaits us?
 
  What will be an ideal response?

Question 2

The star Arcturus shows a large proper motion, almost perpendicular to the galactic plane. What Population might we assume it belongs to, and why?
 
  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

Eazy416

  • Sr. Member
  • ****
  • Posts: 360
Reply #1 on: Jul 27, 2018
Answer to Question 1

Gravity cannot slow the expansion enough, and the universe will be open and expand forever.

Answer to Question 2

It might be an older Population II star, because of its comet-like motion cutting across the galactic disk.


justinmsk

  • Hero Member
  • *****
  • Posts: 524
Reply #2 on: Jul 27, 2018
TY


Eazy416

  • Sr. Member
  • ****
  • Posts: 360
Reply #3 on: Jul 27, 2018
You're welcome


« previous next »
 

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

Excessive alcohol use costs the country approximately $235 billion every year.

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).

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Fate mapping during embryonic development. Fate mapping during embryonic development.
Big Picture of the Evolution of the Universe Big Picture of the Evolution of the Universe
Changes in Synaptic Density From Birth to Age 2 Synaptic connections increase throughout the first Changes in Synaptic Density From Birth to Age 2 Synaptic connections increase throughout the first
The more air and fuel that can be packed in a cylinder, the greater the density of the air–fuel ... The more air and fuel that can be packed in a cylinder, the greater the density of the air–fuel ...
Stomatal density and carbon dioxide Stomatal density and carbon dioxide
Physics- Density, Pressure and Pascal's Principle Physics- Density, Pressure and Pascal's Principle
Video: Regulation of GFR: autoregulation via myogenic mechanism Myogenic mechanism

For a complete list of videos, visit our video library