$(10$ pts$.){10}^{15}{m}^{-2}$ is the typical value for the dislocation of heavily deformed nickel. Calculate the average space between dislocation lines as well as the dislocation energy. In nickel, $E=210$GPa,$v=0\mathrm{.}3,$ and $b=0\mathrm{.}25nm($Assuming dislocations are half screw and half edge, and nickel is isotropic material.$).$