[填空题]
A water tank is the shape of : rr:5xgvmr :o* g1x)savjfq9a 49-jd9;)9b1uav6 c uhqkh au nbu4gbfcube 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.)