« previous next »

Author Question: Cosmological Redshift refers to A) the expansion of space itself. B) the expansion of galaxies. ... (Read 98 times)

beccaep

  • Hero Member
  • *****
  • Posts: 535
on: Jul 29, 2018
Cosmological Redshift refers to
 
  A) the expansion of space itself.
  B) the expansion of galaxies.
  C) the expansion of red giants.
  D) the tendency of light to expand when free of gravitational influences.

Question 2

The redshift of a galaxy refers to the rate
 
  A) at which is receding.
  B) at which it is approaching.
  C) at which it is spinning.
  D) of its fusion.


Expo

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

beccaep

  • Hero Member
  • *****
  • Posts: 535
Reply #2 on: Jul 29, 2018
Thank you!


Expo

  • Sr. Member
  • ****
  • Posts: 351
Reply #3 on: Jul 29, 2018
Always glad to help...


« previous next »
 

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.

Did you know?

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

Did you know?

Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

Oasis in space: earthrise over the moon's horizon. Oasis in space: earthrise over the moon's horizon.
Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int Part of the Hubble Ultra-Deep Field image showing a typical section of space containing galaxies int
True-color view of Mars seen through NASA's Hubble Space Telescope in 1999 True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
Spitzer Space Telescope Spitzer Space Telescope
Temperament refers to stable differences in the emotional reactions of different children to similar ... Temperament refers to stable differences in the emotional reactions of different children to similar ...
International space station International space station
Video: Endocytosis - pinocytosis, receptor mediated and Transcytosis

For a complete list of videos, visit our video library