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

Author Question: Briefly describe the order of creation of normal matter in the Big Bang. What will be an ideal ... (Read 53 times)

skymedlock

  • Hero Member
  • *****
  • Posts: 561
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
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
Wow, this really help


Mochi

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

For a complete list of videos, visit our video library