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

Author Question: In the critical density universe now proposed, the ratio of dark energy to matter is about A) 1 ... (Read 143 times)

vinney12

  • Hero Member
  • *****
  • Posts: 586
on: Jul 27, 2018
In the critical density universe now proposed, the ratio of dark energy to matter is about
 
  A) 1 to 5. B) 1 to 1. C) 10 to 1. D) 3 to 1. E) 1 to 100.

Question 2

Why can the Hubble Space Telescope give us better direct measurements of star diameters than larger Earth-based telescopes can?
 
  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

heinisk01

  • Sr. Member
  • ****
  • Posts: 329
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

Without the atmosphere and twinkling caused by turbulence, HST gives much better resolution and thus can directly image the disks of some of the giant stars, such as Betelgeuse.


vinney12

  • Hero Member
  • *****
  • Posts: 586
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


heinisk01

  • Sr. Member
  • ****
  • Posts: 329
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

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?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Critical Values of the Chi-Square Distribution Critical Values of the Chi-Square Distribution
Locations of key energy meridians and acupoints for the back, shoulder, arm, neck, head, and face. Locations of key energy meridians and acupoints for the back, shoulder, arm, neck, head, and face.
Model of proposed supercomplex of complexes I, III, and IV Model of proposed supercomplex of complexes I, III, and IV
Fire activity ratio Fire activity ratio
Energy Transfer Energy Transfer
The leptin–melanocortin pathway of energy balance The leptin–melanocortin pathway of energy balance
Video: Electrical Conduction System of the Heart

For a complete list of videos, visit our video library