Posted by: admin in Astronomy & Space on November 14th, 2010
tdoby3 asked:
Science fiction authors suggest that a planet named “Vulcan” might orbit between Mercury and the Sun. If Vulcan really existed in this location then it should
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Science fiction authors suggest that a planet named “Vulcan” might orbit between Mercury and the Sun. If Vulcan really existed in this location then it should
A. be mainly composed of rock and metal
B. be mainly composed of hydrogen and helium
C. have a density about the same as the density of water
D. be at least as large as Uranus
That helped, thank you
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