« previous next »

Author Question: The final core collapse of a massive star takes about 13 seconds. Indicate whether the statement ... (Read 72 times)

urbanoutfitters

  • Hero Member
  • *****
  • Posts: 530
on: Jul 27, 2018
The final core collapse of a massive star takes about 13 seconds.
 
  Indicate whether the statement is true or false

Question 2

The term observable universe refers to
 
  A) that portion of the universe that we have so far photographed through telescopes.
  B) the portion of the universe that can be seen by the naked eye.
  C) the portion of the universe that is not hidden from view by, for example, being below the horizon.
  D) that portion of the universe that we can see in principle, given the current age of the universe.


C.mcnichol98

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 27, 2018
Answer to Question 1

FALSE

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

urbanoutfitters

  • Hero Member
  • *****
  • Posts: 530
Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


C.mcnichol98

  • Sr. Member
  • ****
  • Posts: 314
Reply #3 on: Jul 27, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.

Did you know?

Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.

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.

A Binary Star System A Binary Star System
Upper Paleolithic stone tools include blade-based tools as seen here being produced from a blade cor Upper Paleolithic stone tools include blade-based tools as seen here being produced from a blade cor
Example of a patient statement. Example of a patient statement.
Example of Reconciling a Bank Statement Example of Reconciling a Bank Statement
Converting Degrees to Degrees, Minutes, Seconds Converting Degrees to Degrees, Minutes, Seconds
Convert 0.4 radians to Degrees, Minutes, Seconds Convert 0.4 radians to Degrees, Minutes, Seconds
Video: Egg and Sperm Formations in Animals Animation

For a complete list of videos, visit our video library