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==Prove==
[[File:Calculations of Mass and Radius for a Low Density Black Hole.JPG]]
<math>\begin{align} & \rho=\frac{m}{\frac{4}{3}\bullet\pi\bullet r^3} \\ & \frac{m}{\frac{2Gm}{c^2}^3\bullet\frac{4}{3}\bullet\pi}=1000Kg/M^3 \\ & \frac{m}{\frac{8G^3m^3}{c^6}\bullet\frac{4\pi}{3}}=1000Kg/M^3 \\ & \frac{3mc^6}{32\bullet\pi\bullet m^3G^3}=1000Kg/M^3 \\ & 3c^6=32000\bullet\pi\bullet m^2G^3\bullet Kg/M^3 \\ & m=\sqrt{\frac{3c^6}{32000\bullet\pi\bullet G^3\bullet Kg/M^3}}=\frac{c^3/100}{\sqrt{3.2/3\bullet\pi\bullet G^3\bullet Kg/M^3}} \\ & m\approx\frac{2.7\bullet 10^{23}M^3/sec^3}{\sqrt{10/3\bullet 3\bullet 10^{-31}M^9\bullet sec^{-6}\bullet Kg^{-3}\bullet Kg/M^3}}=\frac{2.7\bullet 10^{27}M^3/sec^3}{\sqrt{10\bullet 10^{-31}M^6/sec^6\bullet Kg^{-2}}} \\ & m\approx\frac{2.7\bullet 10^{23}}{10^{-15}}Kg=2.7\bullet 10^{38}Kg \end{align} \,\!</math>
==Prove==
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