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

Author Question: The Andromeda Galaxy (M31) is what type? a. Spiral b. Irregular c. Elliptical d. Regular ... (Read 40 times)

audie

  • Hero Member
  • *****
  • Posts: 532
on: Jul 28, 2018
The Andromeda Galaxy (M31) is what type?
 a. Spiral
  b. Irregular
  c. Elliptical
  d. Regular spiral

Question 2

When a hydrogen electron is in its first excited state, its principal quantum number is
 a. zero.
  b. 2.
  c. 13.60 eV.
  d. 1.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

wuly

  • Sr. Member
  • ****
  • Posts: 327
Reply #1 on: Jul 28, 2018
Answer to Question 1

a

Answer to Question 2

b


audie

  • Member
  • Posts: 532
Reply 2 on: Jul 28, 2018
Excellent

isabelt_18

  • Member
  • Posts: 342
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

Did you know?

The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

The Type C killer whale The Type C killer whale
Type II Tissue Specific Reactions Type II Tissue Specific Reactions
Action of a type II topoisomerase Action of a type II topoisomerase
Comparison of A-type Climates Comparison of A-type Climates
Mixing Regular and N P H Mixing Regular and N P H
Bar-eye phenotypes in contrast to the wild-type eye in Drosophila Bar-eye phenotypes in contrast to the wild-type eye in Drosophila
Video: Types of Shock (Part 2 of 2)

For a complete list of videos, visit our video library