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 90 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
Wow, this really help

tkempin

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Thyroid conditions cause a higher risk of fibromyalgia and chronic fatigue syndrome.

Did you know?

Nearly 31 million adults in America have a total cholesterol level that is more than 240 mg per dL.

Did you know?

The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").

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?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Biology Is Studied at Many Levels of Organization (Part 2) Biology Is Studied at Many Levels of Organization (Part 2)
Plant Cell Types (Part 1) Plant Cell Types (Part 1)
How to solve optimization problems in calculus (Part 2) How to solve optimization problems in calculus (Part 2)
How to calculate simple interest (Part 4; P = I/rt) How to calculate simple interest (Part 4; P = I/rt)
Part of a Semantic Network in Long-Term Memory Part of a Semantic Network in Long-Term Memory
Annotation of a DNA sequence containing part of the human globin gene Annotation of a DNA sequence containing part of the human globin gene
Video: Hydrogen bonds - role in the body

For a complete list of videos, visit our video library