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Home Q & A Board Science-Related Homework Help Physics
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staedtler staedtler
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7 years ago
Mercury rotates once with respect to the distant stars in 59 days and has a sidereal period of 88 days.  If a star is seen to be overhead to an observer on Mercury at midnight on a particular day, how many times will Mercury orbit the Sun before this star is again above the observer's head in a nighttime sky?  (See Fig. 7-8, Comins and Kaufmann, Discovering the Universe, 7th Ed.)
A)   3 times
B)   2 times
C)   It will never again reach this specific position.
D)   1 time
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Discovering the Universe

Discovering the Universe


Edition: 7th
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hyponoticahyponotica
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7 years ago
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staedtler Author
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7 years ago
Grinning Face Exactly what I needed
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