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# What is the value of Mass of earth and Density of earth ???

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Mass of earth-

$M=\frac{gR^{2}}{G}$ $\simeq \; 10^{25}kg$

The density of earth-

$\rho =\frac{3g}{4\pi GR}$

So $\rho =5478.4\; kg/m^{3}$

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