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

Author Question: As the Universe cooled, it eventually reached a temperature of 3,000 K and protons were able to ... (Read 183 times)

lb_gilbert

  • Hero Member
  • *****
  • Posts: 588
on: Jul 27, 2018
As the Universe cooled, it eventually reached a temperature of 3,000 K and protons were able to capture and hold electrons to form neutral hydrogen. This process is known as
 
  a. ionization.
  b. isotropy.
  c. annihilation.
  d. recombination.
  e. hydration.

Question 2

A star begins fusing hydrogen to helium the moment it leaves the main sequence.
 
  a. True
  b. False
  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

princessflame2016

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

d

Answer to Question 2

False


lb_gilbert

  • Hero Member
  • *****
  • Posts: 588
Reply #2 on: Jul 27, 2018
Thanks


princessflame2016

  • Sr. Member
  • ****
  • Posts: 298
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

If you could remove all of your skin, it would weigh up to 5 pounds.

The Scales of the Universe The Scales of the Universe
Predicted Temperature Trends Through the 21st Century Predicted Temperature Trends Through the 21st Century
Cycles of Air Temperature Cycles of Air Temperature
Ceiling effect of aspirin. A plateau is reached where increasing the dose of aspirin will not create ... Ceiling effect of aspirin. A plateau is reached where increasing the dose of aspirin will not create ...
How to find when Celsius and Fahrenheit are the same temperature How to find when Celsius and Fahrenheit are the same temperature
The temperature of an average lightning bolt is 3.0 x 104 °C. What is the equiva The temperature of an average lightning bolt is 3.0 x 104 °C. What is the equiva
Video: Factors that affect conduction rates (myelination, axon diameter & temperature)

For a complete list of videos, visit our video library