« previous next »

Author Question: The actual matter density of the universe, accounting for all of the luminous matter and all of the ... (Read 74 times)

sammy

  • Hero Member
  • *****
  • Posts: 818
on: Jul 27, 2018
The actual matter density of the universe, accounting for all of the luminous matter and all of the dark matter known to exist in galaxies and clusters, is what fraction of the critical density?
 
  A) 25 percent B) 10 percent C) 200 percent D) 1 percent E) 100 percent

Question 2

The tectonic surface features we see on Triton are similar to the grooves of Ganymede.
 
  Indicate whether the statement is true or false


juwms

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

TRUE


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

There are approximately 3 million unintended pregnancies in the United States each year.

Did you know?

Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

Did you know?

As the western states of America were settled, pioneers often had to drink rancid water from ponds and other sources. This often resulted in chronic diarrhea, causing many cases of dehydration and death that could have been avoided if clean water had been available.

The Scales of the Universe The Scales of the Universe
Soil bulk density Soil bulk density
Vapor density. The top drawing illustrates the movement of a gas with a vapor density less than 1; ... Vapor density. The top drawing illustrates the movement of a gas with a vapor density less than 1; ...
Raisin Bread Analogy for an Expanding Universe Raisin Bread Analogy for an Expanding Universe
Effect of dietary fats on high- and low-density cholesterol levels Effect of dietary fats on high- and low-density cholesterol levels
What is the density of 96 mL of a liquid that has a mass of 90.5 g? What is the density of 96 mL of a liquid that has a mass of 90.5 g?
Video: Phlebotomy

For a complete list of videos, visit our video library