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 76 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
Great answer, keep it coming :)

laurnthompson

  • Member
  • Posts: 334
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

The most common treatment options for addiction include psychotherapy, support groups, and individual counseling.

Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

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.

Hugging Galaxy Hugging Galaxy
Spiral Galaxies Seen Nearly Edge On from the Milky Way Spiral Galaxies Seen Nearly Edge On from the Milky Way
Elliptical Galaxy M32 Elliptical Galaxy M32
Robert Smithson, Spiral Jetty. Robert Smithson, Spiral Jetty.
When checking a waste spark-type ignition system, check that the secondary wires are attached to the ... When checking a waste spark-type ignition system, check that the secondary wires are attached to the ...
Action of a type I topoisomerase Action of a type I topoisomerase
Video: Exercise and cardiac output

For a complete list of videos, visit our video library