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Author Question: The masses of Neptune and Uranus were first determined by: A) observations of their motions ... (Read 43 times)

FButt

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The masses of Neptune and Uranus were first determined by:
 
  A) observations of their motions around the Sun.
  B) observations of their magnetic fields.
  C) their densities divided by their volumes.
  D) observations of the motions of their satellites.
  E) their compositions.

Question 2

An X-ray photon has more energy than a visible photon.
 
  Indicate whether the statement is true or false



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Smiles0805

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Answer to Question 1

D

Answer to Question 2

TRUE





 

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