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Author Question: The rotation of the magnetic fields of the jovian planets is believed to also give us the rotation ... (Read 346 times)

cherise1989

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on: Jul 27, 2018
The rotation of the magnetic fields of the jovian planets is believed to also give us the rotation rate of the planet's core.
 
  Indicate whether the statement is true or false

Question 2

Every solar type star ever formed still shines in the Milky Way Galaxy, yet our naked eyes see stars that generally are much younger than the Sun. Explain.
 
  What will be an ideal response?


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jxjsniuniu

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

TRUE

Answer to Question 2

G type stars are fairly long lived, and last longer than the age of the Galaxy. More massive stars are much more luminous, thus easy to see with our eyes, but they are also spendthrifts, rapidly depleting their main sequence hydrogen supply. Most of them have long since turned into supernovae and collapsed, so only the newest are still evident in our region of the Galaxy.


cherise1989

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


jxjsniuniu

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


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