[填空题]
What is the angular momentum of a 0.+czhum e. k(ph(. fewha7hu9+ 210-kg ball rotating on the end of a thin st hz.ahmuch kpeuh9e+ wf7((.+ *xvhormt 7/s 5gz84woring in a circle of rsgw48r7 m* vhxzo o5/tadius 1.10 m at an angular speed of 10.4 $rad/s$? $kg \cdot m^2$