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 48 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
Excellent

sultana.d

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

Did you know?

In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Electron atomic and molecular orbitals Electron atomic and molecular orbitals
A 1998 false-colour near-infrared image of Uranus showing cloud bands, rings, and moons obtained by A 1998 false-colour near-infrared image of Uranus showing cloud bands, rings, and moons obtained by
Calcium channels and muscle contraction: (a) Calcium channels open as the action potential travels ... Calcium channels and muscle contraction: (a) Calcium channels open as the action potential travels ...
Cloud Types: Low Clouds Cloud Types: Low Clouds
Cloud Types: Low Clouds Cloud Types: Low Clouds
Distribution of Thunderstorms: Detailed data on cloud-to-ground lightning flashes have been ... Distribution of Thunderstorms: Detailed data on cloud-to-ground lightning flashes have been ...
Video: Ultrasound of a Fetus (Sonogram)

For a complete list of videos, visit our video library