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

Author Question: What property of a molecular cloud does not counteract gravitational contraction? A) thermal ... (Read 22 times)

TVarnum

  • Hero Member
  • *****
  • Posts: 548
on: Jul 27, 2018
What property of a molecular cloud does not counteract gravitational contraction?
 
  A) thermal pressure
  B) turbulent motions
  C) magnetic fields
  D) fragmentation

Question 2

What is characteristic of a main sequence star?
 
  A) It has a mass less than the Sun's.
  B) It has rapid rotation and a strong stellar wind.
  C) Nuclear fusion in the core varies due to the amount of gravitational contraction that occurs and which heavy elements are produced.
  D) The rate of nuclear energy generated in the hydrogen to helium fusing core equals the rate radiated from the surface.
  E) All of the above are correct.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

memslove

  • Sr. Member
  • ****
  • Posts: 321
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


TVarnum

  • Member
  • Posts: 548
Reply 2 on: Jul 27, 2018
Wow, this really help

jordangronback

  • Member
  • Posts: 339
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

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?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

Did you know?

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

A molecular model showing chromosome territories in the cell nucleus of humans A molecular model showing chromosome territories in the cell nucleus of humans
Electron atomic and molecular orbitals Electron atomic and molecular orbitals
A molecular mechanism for suppression A molecular mechanism for suppression
Gravitational Lensing of Extremely Distant Galaxies Gravitational Lensing of Extremely Distant Galaxies
The structure of B-DNA from studies of molecular crystals The structure of B-DNA from studies of molecular crystals
Thermal Protective Clothing Thermal Protective Clothing
Video: SNP Polymorphysim Microarray Chip - How to Test a Person's DNA

For a complete list of videos, visit our video library