[填空题]
A water tank is the sharb9i0is.y// x vjoz,z p ebp88ui (er dxyq7v9f 5zmq-4e 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.)