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

Author Question: The simple Big Bang theory does not solve all of the problems that we observe (or hope to observe) ... (Read 49 times)

waynest

  • Hero Member
  • *****
  • Posts: 553
The simple Big Bang theory does not solve all of the problems that we observe (or hope to observe) in our universe. These problems include all of the following EXCEPT:
  a. the existence of magnetic monopoles.
  b. the explanation for the observed flatness of our universe.
  c. the explanation of the extreme homogeneity of direction of our universe.
  d. the explanation of why our universe appears to be expanding at an accelerating rate.
  e. the explanation of why the universe was so hot at the beginning and has cooled off.

Question 2

Which of the following statements is true about the very early universe (within the first three minutes)?
 
a. The electroweak force was the force believed to have first separated from the others.
  b. The entire first three minutes can be explained by applying a grand unified theory.
  c. Electrons only formed after the protons and neutrons.
  d. The end of the first three minutes signaled the first probable nucleosynthesis.
  e. By about 1 second, the universe was about half the present size.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

allisonblackmore

  • Sr. Member
  • ****
  • Posts: 330
Answer to Question 1

e.
The Big Bang does explain that the universe used to be very dense and therefore very hot. The expansion of the universe explains the cooling

Answer to Question 2

d.
By the end of the first three minutes, the universe had cooled enough for the nuclear strong force to take effect and nucleons bound together to form deuterons.




waynest

  • Member
  • Posts: 553
Reply 2 on: Jul 28, 2018
YES! Correct, THANKS for helping me on my review


Jsherida

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.

Did you know?

The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.

For a complete list of videos, visit our video library