[填空题]
What is the angular mom/2hgx: ()tfh +ckfgllitfs3 xs w9)5m entum of vwbs f:c9e g:9 ,vk-p;n) wiw(obx(bx e7kyn4a 0.210-kg ball rotating on the end of a thin stribye9 4-bo9pv ()ns:b:kw7n xkfwvew, gxc(; ing in a circle of radius 1.10 m at an angular speed of 10.4 $rad/s$? $kg \cdot m^2$