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

Author Question: Briefly describe the order of creation of normal matter in the Big Bang. What will be an ideal ... (Read 13 times)

skymedlock

  • Hero Member
  • *****
  • Posts: 561
on: Jul 27, 2018
Briefly describe the order of creation of normal matter in the Big Bang.
 
  What will be an ideal response?

Question 2

A cloud fragment too small to collapse into a main sequence star becomes a
 
  A) pulsar.
  B) planet of another star.
  C) T-Tauri object.
  D) brown dwarf.
  E) white dwarf.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

al

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 27, 2018
Answer to Question 1

Radiation originally filled the entire universe. There was sufficient energy for photons to transform into stable protons and neutrons. As temperatures dropped, electrons and positrons were formed next. Meanwhile, the protons and neutrons fused to make deuterium, and deuterium fusion led to helium production in the first few minutes. As the temperature fell still more, this production ceased, and finally at decoupling, electrons began to orbit the protons to form neutral hydrogen atoms.

Answer to Question 2

D


skymedlock

  • Member
  • Posts: 561
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

31809pancho

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.

Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

The term wasp is typically defined as any insect of the order Hymenoptera and suborder Apocrita that The term wasp is typically defined as any insect of the order Hymenoptera and suborder Apocrita that
White matter White matter
The paleoanthropologist must understand these deformations in order to figure out which strata a fos The paleoanthropologist must understand these deformations in order to figure out which strata a fos
Normal combustion is a smooth, controlled burning of the air–fuel mixture. Normal combustion is a smooth, controlled burning of the air–fuel mixture.
The three states of matter: solid, liquid, and gas. The three states of matter: solid, liquid, and gas.
Two normal frequency distributions with the same mean but different amounts of variation Two normal frequency distributions with the same mean but different amounts of variation
Video: Primary and secondary response to infection

For a complete list of videos, visit our video library