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 39 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
:D TYSM

elyse44

  • Member
  • Posts: 319
Reply 3 on: Yesterday
Wow, this really help

« previous next »
 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

The rapid collapse of the South Vietnamese army in 1975 caught many by surprise. Evacuees formed a ... The rapid collapse of the South Vietnamese army in 1975 caught many by surprise. Evacuees formed a ...
Processes of the Middle and Upper Troposphere: Rossby Waves and Vorticity Processes of the Middle and Upper Troposphere: Rossby Waves and Vorticity
Processes of the Middle and Upper Troposphere: Rossby Waves and Vorticity Processes of the Middle and Upper Troposphere: Rossby Waves and Vorticity
Pathway for conversion of glucose monomers to polymeric glycogen Pathway for conversion of glucose monomers to polymeric glycogen
Forests conversion Forests conversion
Water-Soluble Vitamins Act as Coenzymes in Metabolic Processes Water-Soluble Vitamins Act as Coenzymes in Metabolic Processes
Video: Baroreceptor Reflex

For a complete list of videos, visit our video library