[填空题]
A water tank is the shapvu7d7kapp z75. cx q/eebvac2 (1uk,0 dso *yqz of a cube with 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.)