Initially a satellite of 100 kg is in a circular orbit of radius 1.5 R_E. This satellite can be moved to a circular orbit of radius 3 R_E by…

Initially a satellite of $\displaystyle 100$ kg is in a circular orbit of radius $\displaystyle 1.5 \mathrm{R}_{\mathrm{E}}$. This satellite can be moved to a circular orbit of radius $\displaystyle 3 R_E$ by supplying $\displaystyle \alpha \times 10^6 \mathrm{~J}$ of energy The value of $\displaystyle \alpha$ is $\displaystyle \_\_\_\_$. (Take Radius of Earth $\displaystyle R_E=6 \times 10^6 \mathrm{~m}$ and $\displaystyle \mathrm{g}=10 \mathrm{~m} / \mathrm{s}^2$ )