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 115 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?

Medication errors are three times higher among children and infants than with adults.

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Ranges of normal temperature values Ranges of normal temperature values
Choose the telephone unit that offers the features needed in your office. Choose the telephone unit that offers the features needed in your office.
Measuring Axillary Temperature Measuring Axillary Temperature
Distribution of Thunderstorms: Approximately 14.5 million thunderstorms occur each year across the ... Distribution of Thunderstorms: Approximately 14.5 million thunderstorms occur each year across the ...
Controls of Temperature Controls of Temperature
Calculate KP for the following reactions at the indicated temperature. Calculate KP for the following reactions at the indicated temperature.
Video: Muscle Fatigue and Recovery

For a complete list of videos, visit our video library