Mon November 05, 2012 By: Vijith Soman

how to find density?

Expert Reply
Tue November 06, 2012
value of g=9.8m/s2
radius of earth, R=6400 km=64 x 105m
value of gravitational constant, G=6.67 x 10-11 (N x m 2 x kg -2 )
density of earth is 5.54 g/cm3
Homogeneous sphere means sphere of uniform structure. So, the value of 'g' does not change on homogeneous sphere as the distance of each point on surface of sphere is equidistant from center.
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