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

Author Question: Which of the following processes slowed the collapse of protogalactic clouds? A) the conversion ... (Read 28 times)

Collmarie

  • Hero Member
  • *****
  • Posts: 569
on: Jul 27, 2018
Which of the following processes slowed the collapse of protogalactic clouds?
 
  A) the conversion of gravitational potential energy into kinetic and thermal energy as the cloud collapsed
  B) the formation of the first generation of stars
  C) the shock waves from the exploding supernovae of the earliest stars
  D) the pull of gravity of the mass of the cloud material
  E) the radiating away of thermal energy

Question 2

A unique characteristic of type O stars is ionized helium lines in its spectrum.
 
  Indicate whether the statement is true or false


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

welcom1000

  • Sr. Member
  • ****
  • Posts: 298
Reply #1 on: Jul 27, 2018
Answer to Question 1

C

Answer to Question 2

TRUE


Collmarie

  • Member
  • Posts: 569
Reply 2 on: Jul 27, 2018
Gracias!

kjohnson

  • Member
  • Posts: 330
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

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?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

When intravenous medications are involved in adverse drug events, their harmful effects may occur more rapidly, and be more severe than errors with oral medications. This is due to the direct administration into the bloodstream.

Did you know?

The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

Did you know?

Certain topical medications such as clotrimazole and betamethasone are not approved for use in children younger than 12 years of age. They must be used very cautiously, as directed by a doctor, to treat any child. Children have a much greater response to topical steroid medications.

Overview of material uptake and long-distance transport processes in plants Overview of material uptake and long-distance transport processes in plants
Studies in landscape ecology indicate that interactions between biotic and abiotic processes are dep Studies in landscape ecology indicate that interactions between biotic and abiotic processes are dep
Growth in Cold and Cool Clouds Growth in Cold and Cool Clouds
Specific transport processes Specific transport processes
Classification of Clouds According to Height and Form Classification of Clouds According to Height and Form
Which of the following is the appropriate conversion of (CH3)2CHCH2CHClCH3 to a skeletal ... Which of the following is the appropriate conversion of (CH3)2CHCH2CHClCH3 to a skeletal ...
Video: Ear Animation

For a complete list of videos, visit our video library