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 83 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


kthug

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.

Did you know?

Persons who overdose with cardiac glycosides have a better chance of overall survival if they can survive the first 24 hours after the overdose.

For a complete list of videos, visit our video library