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Author Question: A magnifying glass produces a virtual image. Indicate whether the statement is true or ... (Read 27 times)

waynest

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on: Jul 29, 2018
A magnifying glass produces a virtual image.
 
  Indicate whether the statement is true or false

Question 2

If a spherical galaxy of diameter 100,000 ly contained enough mass to be a black hole, what would be its mass?
 
  A)
 
  200 x 109 kg
  B)
 
  400 x 109 kg
  C)
 
  6.9 x 1023 kg
  D)
 
  3.2 x 1047 kg
  E)
 
  6.4 x 1047 kg


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kishoreddi

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Reply #1 on: Jul 29, 2018
Answer to Question 1

TRUE

Answer to Question 2

D


waynest

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

isabelt_18

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Reply 3 on: Yesterday
Wow, this really help

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