[填空题]
What is the angular momentum ofzll 8re wgftwc*c c,+4by9k 15 a 0.210-kg ball rotating on the eny sx6a8 u333xjk kosp716ow fsd of a thin string in a 3sxapw3 f8js 7o1yk6 u36k soxcircle of radius 1.10 m at an angular speed of 10.4 $rad/s$? $kg \cdot m^2$