1.

Kepler's 3rd law states that:

A. the periods of revolution of the planets are inversely proportional to the cube of their mean distan
B. the periods of revolution of the planets are proportional to the cube of their mean distances from s
C. the squares of the periods of revolution of the planets are inversely proportional to the cube of th
D. the squares of the periods of revolution of the planets are proportional to the cube of their mean d
Answer» E.


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