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

Author Question: The gas density in an emission nebula is typically about how many particles per cc? A) dozen B) ... (Read 42 times)

torybrooks

  • Hero Member
  • *****
  • Posts: 500
on: Jul 27, 2018
The gas density in an emission nebula is typically about how many particles per cc?
 
  A) dozen
  B) hundred
  C) thousand
  D) hundred thousand
  E) million

Question 2

How would the geometry of a universe with o greater than 1 differ from one with o less than 1?
 
  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

taylorsonier

  • Sr. Member
  • ****
  • Posts: 377
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

If o is greater than 1, the geometry of space is positive and could be likened to the surface of a sphere. If o is less than 1, the geometry is negative and space is saddle-shaped.


torybrooks

  • Member
  • Posts: 500
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

nyrave

  • Member
  • Posts: 344
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

If all the neurons in the human body were lined up, they would stretch more than 600 miles.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Formation of a Bipolar Planetary Nebula Formation of a Bipolar Planetary Nebula
Soil bulk density Soil bulk density
Density of Papillae, and Hence Taste Buds, in a Supertaster and in a Normal Taster Density of Papillae, and Hence Taste Buds, in a Supertaster and in a Normal Taster
Two tiny particles having charges of +7.00 μC and -9.00 μC are placed along the y-axis. The ... Two tiny particles having charges of +7.00 μC and -9.00 μC are placed along the y-axis. The ...
Physics - Density, Pressure, and Pascal's Principle Physics - Density, Pressure, and Pascal's Principle
Physics - Density, Pressure, and Pascal's Principle Physics - Density, Pressure, and Pascal's Principle
Video: Language Areas Animation

For a complete list of videos, visit our video library