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Problem Using g = 9.8 m s − 2 g = 9.8\,\text{m\,s}^{-2} g = 9.8 m s − 2 G = 6.67 × 10 − 11 N m 2 kg − 2 G = 6.67\times10^{-11}\,\text{N\,m}^{2}\,\text{kg}^{-2} G = 6.67 × 1 0 − 11 N m 2 kg − 2 R ⊕ = 6.4 × 10 6 m R_{\oplus} = 6.4\times10^{6}\,\text{m} R ⊕ = 6.4 × 1 0 6 m 1.4 × 10 4 kg m − 3 1.4\times10^{4}\,\text{kg\,m}^{-3} 1.4 × 1 0 4 kg m − 3 5.5 × 10 3 kg m − 3 5.5\times10^{3}\,\text{kg\,m}^{-3} 5.5 × 1 0 3 kg m − 3 3.7 × 10 3 kg m − 3 3.7\times10^{3}\,\text{kg\,m}^{-3} 3.7 × 1 0 3 kg m − 3 9.8 × 10 3 kg m − 3 9.8\times10^{3}\,\text{kg\,m}^{-3} 9.8 × 1 0 3 kg m − 3 Browse the problem library