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

Author Question: Astronomers believe that a spiral galaxy may form A) from a collision between a small and large ... (Read 80 times)

Pineappleeh

  • Hero Member
  • *****
  • Posts: 585
Astronomers believe that a spiral galaxy may form
 
  A) from a collision between a small and large galaxy.
  B) due to a quasar shutting down.
  C) from the sudden contraction of an elliptical galaxy.
  D) from the collision of two giant elliptical galaxies.
  E) from the explosion of a dwarf irregular galaxy.

Question 2

The center of mass of a binary star system is
 
  A) the center of the most massive of the two stars.
  B) the center of the least massive of the two stars.
  C) the point halfway in between them.
  D) the point at which the two objects would balance if they were somehow connected.
  E) the average mass of the two stars.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

CAPTAINAMERICA

  • Sr. Member
  • ****
  • Posts: 325
Answer to Question 1

A

Answer to Question 2

D




Pineappleeh

  • Member
  • Posts: 585
Reply 2 on: Jul 27, 2018
Excellent


DylanD1323

  • Member
  • Posts: 314
Reply 3 on: Yesterday
Gracias!

 

Did you know?

Women are 50% to 75% more likely than men to experience an adverse drug reaction.

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?

One way to reduce acid reflux is to lose two or three pounds. Most people lose weight in the belly area first when they increase exercise, meaning that heartburn can be reduced quickly by this method.

Did you know?

Vital signs (blood pressure, temperature, pulse rate, respiration rate) should be taken before any drug administration. Patients should be informed not to use tobacco or caffeine at least 30 minutes before their appointment.

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.

For a complete list of videos, visit our video library