Let vec$(D)=y^2{z}^3$hat$(a{)}_x+2xy{z}^3$hat$(a{)}_y+3x{y}^2{z}^2$hat$(a{)}_{z}p\frac{C}{m^2}$ in free space. Find the total electric flux passing through the surface $x=3,0y2,0z1$ in a direction away from the origin. Find $E$ at $P(3,2,1).$ Find the total charge contained in an incremental sphere having a radius of $2m$ centered at $P(3,2,1).[$Ans: $0\mathrm{.}667$ pC $,[$:$4\mathrm{.}31\frac{V}{m},2\mathrm{.}61{10}^{-27}C$