[填空题]
What is the angular momentum of a 0.210-kg ball rotating onorwklzuo2m) ,y 00-dt;2 euba the end of a thin st; 0 oe0uzauy-2 ol)m trw,bkd2q;, )bf(zm8aac l8ukjring in a circaq fk)8,z jmu ab(;l8cle of radius 1.10 m at an angular speed of 10.4 $rad/s$? $kg \cdot m^2$