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

Author Question: Evidence that tidal interactions and collisions of galaxies may make ordinary galaxies active is ... (Read 95 times)

nummyann

  • Hero Member
  • *****
  • Posts: 576
on: Jul 27, 2018
Evidence that tidal interactions and collisions of galaxies may make ordinary galaxies active is that
 
  a. many active galaxies are distorted.
  b. some active galaxies have companions.
  c. many active galaxies are distorted and some active galaxies have companions.
  d. active galaxies are neither distorted nor have companions.

Question 2

The explosion of a supernova type II can leave behind
 
  a. a planetary nebula.
  b. a shell of hot, expanding gas with a white dwarf at the center.
  c. a shell of hot, expanding gas with a neutron star at the center.
  d. Nothing is ever left behind.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Dunkey

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jul 27, 2018
Answer to Question 1

c

Answer to Question 2

c


nummyann

  • Hero Member
  • *****
  • Posts: 576
Reply #2 on: Jul 27, 2018
Thanks


Dunkey

  • Sr. Member
  • ****
  • Posts: 333
Reply #3 on: Jul 27, 2018
Welcome :)


« previous next »
 

Did you know?

Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

Did you know?

A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

Interactions among chromosomes Interactions among chromosomes
Merging Galaxies Merging Galaxies
Common skin signs are often evidence of an illness or disorder. A wheal is a localized, evanescent ... Common skin signs are often evidence of an illness or disorder. A wheal is a localized, evanescent ...
Stand over a rocker base to make weight shifts. Stand over a rocker base to make weight shifts.
Types of pharmacokinetic drug–drug interactions. Types of pharmacokinetic drug–drug interactions.
To make a 3.00 m solution, one could take 3.00 moles of solute and add To make a 3.00 m solution, one could take 3.00 moles of solute and add
Video: Glomerular filtrate rate: pressures that affect GFR, NFP & GFR and blood composition

For a complete list of videos, visit our video library