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Author Question: What spacecraft was intentionally destroyed in 2003 so that it could not hit Europa? A) Cassini ... (Read 17 times)

awywial

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on: Jul 27, 2018
What spacecraft was intentionally destroyed in 2003 so that it could not hit Europa?
 
  A) Cassini
  B) Voyager 2
  C) Galileo
  D) Huygens
  E) Pioneer 11

Question 2

Process of Science: Explain how patterns in cosmic abundances (Figure 17.15 in the textbook) fit theoretical predictions for the origin of the elements.
 
  What will be an ideal response?


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djpooyouma

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

C

Answer to Question 2

Heavier elements are rarer as they are produced in shorter-lived phases of rare, massive stars. Iron is relatively abundant because its production is energetically favored as the end step of fusion and there is only a short time during the supernova phase when it can be destroyed by fission. The abundances of nuclei with even numbers of protons is greater than neighboring nuclei with odd numbers of protons as expected for nuclear reactions through the addition of helium nuclei.


awywial

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Reply 2 on: Jul 27, 2018
Gracias!

Hdosisshsbshs

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Reply 3 on: Yesterday
Wow, this really help

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