If G is universal gravitational constant,g is acceleration due to gravity and R is the radius of the earth,then the mean density of earth D is given by the equation
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g = GM / R²
M = gR² / G
Mean density = Mass / Volume
= M / (4/3 π R³)
= [(gR² / G) / (4/3 π R³)]
= 3g / (4GπR)
M = gR² / G
Mean density = Mass / Volume
= M / (4/3 π R³)
= [(gR² / G) / (4/3 π R³)]
= 3g / (4GπR)
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