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Author Question: According to their rotation curves, most spiral galaxies: A) rotate as a solid body. B) rotate ... (Read 94 times)

Melani1276

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on: Jul 27, 2018
According to their rotation curves, most spiral galaxies:
 
  A) rotate as a solid body.
  B) rotate counterclockwise.
  C) have decreasing rotational speeds with increasing distance.
  D) contain dark matter.
  E) contain dark energy.

Question 2

Most of the energy of the supernova is carried outward via a flood of:
 
  A) gamma rays.
  B) helium nuclei.
  C) protons.
  D) neutrinos.
  E) positrons.


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brittanywood

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Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

D


Melani1276

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Reply 2 on: Jul 27, 2018
Thanks for the timely response, appreciate it

Liddy

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Reply 3 on: Yesterday
Wow, this really help

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