[填空题]
A water tank is the shape of a cube wi dk w jc0+x e9rhw9y4gm)qpb-*th sides aw n dcu20/)yzzh06 ud1f. ileof $3.00 \mathrm{~m}$. 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.)