Author Question: How does the theory of inflation explain the near-uniformity of the cosmic microwave background? ... (Read 92 times)

notis

  • Hero Member
  • *****
  • Posts: 596
How does the theory of inflation explain the near-uniformity of the cosmic microwave background?
 
  A) Prior to rapid inflation, all regions of space were close enough to bounce radiation back-and-forth and reach the same temperature.
  B) Matter expanded into regions of space that had no matter, and thus ended up at the same temperature.
  C) The expanding universe would have cooled.
  D) Matter was near the critical-density for a universal collapse, which smoothed out the differences in temperatures.

Question 2

Place the following items in order of actual physical size, from smallest to largest.
 
  A) planets and stars are about the same size, solar system, galaxy
  B) star, planet, solar system, galaxy
  C) star, planet, galaxy, solar system
  D) planet, star, galaxy, solar system
  E) planet, star, solar system, galaxy



patma1981

  • Sr. Member
  • ****
  • Posts: 292
Answer to Question 1

A

Answer to Question 2

E



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

notis

  • Hero Member
  • *****
  • Posts: 596
Both answers were spot on, thank you once again




 

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

According to the National Institute of Environmental Health Sciences, lung disease is the third leading killer in the United States, responsible for one in seven deaths. It is the leading cause of death among infants under the age of one year.

Did you know?

The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

For a complete list of videos, visit our video library