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doit_the_clown doit_the_clown
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7 years ago
What is the mechanism that generates the variable component of Ganymede's magnetic field?
A)   Variable electric currents in the conducting upper atmosphere of this moon
B)   Electric currents induced in the conducting ocean by Ganymede's motion through Jupiter''s powerful magnetic field
C)   The spinning of the moon whose surface is electrically charged, which is equivalent to an electric current
D)   A spinning and permanently magnetized iron core within the liquid ocean
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Discovering the Universe

Discovering the Universe


Edition: 7th
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Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.

Albert Einstein
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discovererdiscoverer
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7 years ago
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doit_the_clown Author
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7 years ago
This calls for a celebration Person Raising Both Hands in Celebration
TAT1238
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Yesterday
Smart ... Thanks!
Tim0301
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2 hours ago
Thank you, thank you, thank you!
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