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

Author Question: The discovery of the cosmic microwave background was important because A) its detection was a ... (Read 48 times)

tuffie

  • Hero Member
  • *****
  • Posts: 534
on: Jul 27, 2018
The discovery of the cosmic microwave background was important because
 
  A) its detection was a major advance in microwave testing.
  B) it was experimental verification of a prediction from the Big Bang theory.
  C) it showed the universe must be closed, with more than the critical density here.
  D) it established a firm center of the universe.
  E) it proved that astronomy at radio wavelengths was possible.

Question 2

What percentage of stars lie on the main sequence? Why?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kjo;oj

  • Sr. Member
  • ****
  • Posts: 328
Reply #1 on: Jul 27, 2018
Answer to Question 1

B

Answer to Question 2

About 90 of all stars are still fusing hydrogen to helium in their cores.


tuffie

  • Member
  • Posts: 534
Reply 2 on: Jul 27, 2018
Excellent

AISCAMPING

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The FDA recognizes 118 routes of administration.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.

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.

Did you know?

The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.

Furchgott's discovery that endothelial cells produce a vasodilating substance. Furchgott's discovery that endothelial cells produce a vasodilating substance.
Aurora australis observed from the Space Shuttle Discovery, on STS-39, May 1991 (orbital altitude: 2 Aurora australis observed from the Space Shuttle Discovery, on STS-39, May 1991 (orbital altitude: 2
Discovery of Charon Discovery of Charon
Cosmic Ray Shower Cosmic Ray Shower
It is important to act concerned when a patient is upset. It is important to act concerned when a patient is upset.
Using alert labels enables the medical staff to quickly identify important information such as ... Using alert labels enables the medical staff to quickly identify important information such as ...
Video: Evolutionary tree of life Animation

For a complete list of videos, visit our video library