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Author Question: Which planet (besides Earth) has been visited by the largest number of robotic spacecraft? A) ... (Read 42 times)

karlynnae

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on: Jul 27, 2018
Which planet (besides Earth) has been visited by the largest number of robotic spacecraft?
 
  A) Mars B) Venus C) Jupiter D) Saturn

Question 2

If the rest wavelength of a certain line is 600 nm, but we observe it at 594 nm, then
 
  A) the source is getting 1 hotter as we watch.
  B) the source is spinning very rapidly, at 1 of the speed of light.
  C) the source is receding from us at 10 of the speed of light.
  D) the source is approaching us at 1 of the speed of light.
  E) the source is approaching us at 0.1 of the speed of light.


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anyusername12131

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

A

Answer to Question 2

D


karlynnae

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Reply #2 on: Jul 27, 2018
TY


anyusername12131

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Reply #3 on: Jul 27, 2018
You're welcome


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