Find the orbital velocity of a LEO satellite, weighing $450$ kg$,$ with height $676$ Km

from the Earth$$s surface. Given that Universal Gravitation Constant is

$6\mathrm{.}67*{10}^{-11}$N$-m^2/$K$g^2$ and Earth$$s radius is $6400$ Km and mass of the Earth is $6*{10}^{24}$ Kg$.$