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Deduce the value of mass of earth. |
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Answer» Mass of earth M = \(\frac{gR^2}{G}\) g = 9.8 m/s2 R = 6.38 x 106 m G = 6.673 x 10-11 Nm2 kg-2 ∴ M = \(\frac{9.8 \times (6.38 \times 10^6)^2}{6.673 \times 10^{-11}}\) =\(\frac {9.8 \times 6.38 \times 6.38}{6.673}\) x \(\frac{10^{12}}{10^{-11}}\) = 5.98 x 1024 kg |
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