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 61 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

juliaf

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

« previous next »
 

Did you know?

Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

Muscle Contraction Muscle Contraction
The cladistic approach from molecular genetic data The cladistic approach from molecular genetic data
A revised animal phylogeny based on molecular data of SSU rRNA A revised animal phylogeny based on molecular data of SSU rRNA
How high a hill would a 75-kg hiker have to climb to increase her gravitational potential ... How high a hill would a 75-kg hiker have to climb to increase her gravitational potential ...
Question about Resultant of gravitational force? Question about Resultant of gravitational force?
Three metabolic pathways that muscles use to obtain the ATP that fuels their contraction. Three metabolic pathways that muscles use to obtain the ATP that fuels their contraction.
Video: Protein Secondary and Tertiary Structures - Animation

For a complete list of videos, visit our video library