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Author Question: The tail of a comet is primarily caused by A) radiation pressure. B) electromagnetic induction. ... (Read 38 times)

danielfitts88

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on: Jul 27, 2018
The tail of a comet is primarily caused by
 
  A) radiation pressure.
  B) electromagnetic induction.
  C) Coulomb repulsion.
  D) eddy currents.
  E) nuclear magnetism.

Question 2

Approximately how soon might we expect an immediate response from a civilization that received the signal we sent to the globular cluster M13 (21,000 light-years away) in 1974?
 
  A) 84,000 years
  B) 21,000 years
  C) 10,500 years
  D) 42,000 years


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lorealeza77

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

A

Answer to Question 2

D


danielfitts88

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Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


lorealeza77

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Reply #3 on: Jul 27, 2018
Great! Please up vote :D


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