[填空题]
A water tank is the shape of a cube wbs;v3t 2 5i lbawgc9yn:ejc,2:jti fh3m x m0k++d4xyith sides of $3.00 \mathrm{~m}$. Each side is measured with an uncertainty of $1.0 \%$. What is the absolute uncertainty in the volume of the tank? (please only input numerical value without units and without the $\pm$ symbol.)