Mass of the earth has been determined through

1.	Mass of the earth has been determined through
Answer» USE of Kepler's `(T^(2))/(R^(3))` constancy law sampling the density of earth's crust and using earth's radius Cavandish's determination of G and usingearth's radius and g at its surface use of periods of satellite at DIFFERENT heights above earth's surface. SOLUTION :( c) `g=(GM_(E))/(R_(E)^(2)) or M_(E)=(gR_(E)^(2))/(G)` Cavendish determined the VALUE of G.

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