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

Author Question: What temperature is needed to fuse helium into carbon? A) 5,800 K B) 100,000 K C) 15 million K ... (Read 139 times)

geoffrey

  • Hero Member
  • *****
  • Posts: 880
on: Jul 27, 2018
What temperature is needed to fuse helium into carbon?
 
  A) 5,800 K
  B) 100,000 K
  C) 15 million K
  D) 100 million K
  E) one billion K

Question 2

In active galaxies, their central engines may be temporarily fed by:
 
  A) a sudden surge of star formation.
  B) a series of supernovae around the core.
  C) the sudden collapse of the core into a supermassive black hole.
  D) a close encounter with a neighbor galaxy.
  E) the fusion of helium into carbon in their cores.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

mtmmmmmk

  • Sr. Member
  • ****
  • Posts: 335
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


geoffrey

  • Hero Member
  • *****
  • Posts: 880
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


mtmmmmmk

  • Sr. Member
  • ****
  • Posts: 335
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Did you know?

Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

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

Carbon-zinc Battery Carbon-zinc Battery
This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ... This five-wire mass air flow sensor consists of a metal foil sensing unit, an intake air temperature ...
Change in air temperature at various air flow rates for a 7 pass operation Change in air temperature at various air flow rates for a 7 pass operation
Temperature Scales Temperature Scales
Stable isotopes of carbon Stable isotopes of carbon
In the reaction C(s) + O2(g) CO2(g) carbon is __________. In the reaction C(s) + O2(g) CO2(g) carbon is __________.
Video: Nervous pathway to the Neuromuscular (NMJ)

For a complete list of videos, visit our video library