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Author Question: The Sun is located at the edge of the galaxy, approximately 50,000 light-years from the galactic ... (Read 63 times)

WhattoUnderstand

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on: Jul 27, 2018
The Sun is located at the edge of the galaxy, approximately 50,000 light-years from the galactic center.
 
  Indicate whether the statement is true or false

Question 2

What is not a main source of evidence for the existence of dark matter?
 
  A) massive blue stars
  B) rotation curves of disk galaxies
  C) stellar motions in elliptical galaxies
  D) velocities and positions of galaxies in clusters of galaxies
  E) gravitational lensing by clusters of galaxies


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TheDev123

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

FALSE

Answer to Question 2

A


WhattoUnderstand

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Reply 2 on: Jul 27, 2018
Excellent

okolip

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Reply 3 on: Yesterday
Wow, this really help

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