This topic contains a solution. Click here to go to the answer

Author Question: The approximate main-sequence lifetime of a star of spectral type O is ________. A) 300 million ... (Read 91 times)

mrsjacobs44

  • Hero Member
  • *****
  • Posts: 500
The approximate main-sequence lifetime of a star of spectral type O is ________.
 
  A) 300 million years B) 10 billion years C) 10,000 years D) 3 million years

Question 2

Stefan's law notes that total energy radiated is proportional to the ________ power of the temperature of the blackbody.
 
  Fill in the blank(s) with correct word



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Zack0mack0101@yahoo.com

  • Sr. Member
  • ****
  • Posts: 341
Answer to Question 1

D

Answer to Question 2

fourth




mrsjacobs44

  • Member
  • Posts: 500
Reply 2 on: Jul 27, 2018
Wow, this really help


TheNamesImani

  • Member
  • Posts: 334
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Adults are resistant to the bacterium that causes Botulism. These bacteria thrive in honey – therefore, honey should never be given to infants since their immune systems are not yet resistant.

Did you know?

The horizontal fraction bar was introduced by the Arabs.

Did you know?

HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

For a complete list of videos, visit our video library