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

Author Question: Helium fusion within a star begins A) after all the hydrogen within the star has been depleted. ... (Read 65 times)

jparksx

  • Hero Member
  • *****
  • Posts: 570
on: Jul 29, 2018
Helium fusion within a star begins
 
  A) after all the hydrogen within the star has been depleted.
  B) when all carbon has been depleted.
  C) because of the force of gravity.
  D) with the expulsion of practically all hydrogen.

Question 2

A main sequence star begins transforming into a red giant when
 
  A) helium begins fusing.
  B) helium within the core begins to expand.
  C) contracting helium causes hydrogen to fuse.
  D) hydrogen starts fusing within the core.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

rekilledagain

  • Sr. Member
  • ****
  • Posts: 337
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: C


jparksx

  • Member
  • Posts: 570
Reply 2 on: Jul 29, 2018
Excellent

CAPTAINAMERICA

  • Member
  • Posts: 325
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

Did you know?

To prove that stomach ulcers were caused by bacteria and not by stress, a researcher consumed an entire laboratory beaker full of bacterial culture. After this, he did indeed develop stomach ulcers, and won the Nobel Prize for his discovery.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Common hydrogen bonds in biological systems Common hydrogen bonds in biological systems
Depleted ground water Depleted ground water
Chewing & Swallowing: Food Processing Begins Chewing & Swallowing: Food Processing Begins
A balloon filled with helium gas at 20°C occupies 2.91 L at 1.00 atm. The balloon is immersed ... A balloon filled with helium gas at 20°C occupies 2.91 L at 1.00 atm. The balloon is immersed ...
Flo Hyman was a 6 foot 5 inch star on the U.S. women’s volleyball team that won a silver medal in ... Flo Hyman was a 6 foot 5 inch star on the U.S. women’s volleyball team that won a silver medal in ...
If the solubility of helium is 0.94 cc per 100 cc of blood at 1.00 atmosphere, w If the solubility of helium is 0.94 cc per 100 cc of blood at 1.00 atmosphere, w
Video: Nerve Impulse Transmission Animation

For a complete list of videos, visit our video library