This topic contains a solution. Click here to go to the answer

Author Question: The Milky Way Galaxy is a. a spiral galaxy. b. part of a cluster of galaxies that contains a few ... (Read 128 times)

newyorker26

  • Hero Member
  • *****
  • Posts: 536
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
Answer to Question 1

d

Answer to Question 2

b




newyorker26

  • Member
  • Posts: 536
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review


nothere

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Gracias!

 

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

As many as 28% of hospitalized patients requiring mechanical ventilators to help them breathe (for more than 48 hours) will develop ventilator-associated pneumonia. Current therapy involves intravenous antibiotics, but new antibiotics that can be inhaled (and more directly treat the infection) are being developed.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

For a complete list of videos, visit our video library