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

Author Question: The Milky Way Galaxy is a. a spiral galaxy. b. part of a cluster of galaxies that contains a few ... (Read 140 times)

newyorker26

  • Hero Member
  • *****
  • Posts: 536
on: Jul 27, 2018
The Milky Way Galaxy is
 
  a. a spiral galaxy.
  b. part of a cluster of galaxies that contains a few dozen galaxies.
  c. about 80,000 light years in diameter.
  d. All of the other choices are correct.

Question 2

If the distance to the nearest star is 4.2 light-years, then
 
  a. the star is 4.2 million AU away.
  b. the light we see left the star 4.2 years ago.
  c. the star must have formed 4.2 billion years ago.
  d. the star must be very young.
  e. the star must be very old.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

underwood14

  • Sr. Member
  • ****
  • Posts: 346
Reply #1 on: Jul 27, 2018
Answer to Question 1

d

Answer to Question 2

b


newyorker26

  • Member
  • Posts: 536
Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

amynguyen1221

  • Member
  • Posts: 355
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

Methicillin-resistant Staphylococcus aureus or MRSA was discovered in 1961 in the United Kingdom. It if often referred to as a superbug. MRSA infections cause more deaths in the United States every year than AIDS.

Methicilli ...
Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

The pineal gland is a part of the thalamus region of the brain. It secretes melatonin. The pineal gland is a part of the thalamus region of the brain. It secretes melatonin.
Elliptical Galaxies Elliptical Galaxies
Gravitational Lensing of Extremely Distant Galaxies Gravitational Lensing of Extremely Distant Galaxies
Creation of Spiral and Elliptical Galaxies Creation of Spiral and Elliptical Galaxies
Estimating Potential Blood Volume Loss (Part 2) Estimating Potential Blood Volume Loss (Part 2)
All human organ systems and their functions (Part 1) All human organ systems and their functions (Part 1)
Video: What is Reverse Osmosis?

For a complete list of videos, visit our video library