Each of the following objects has a radius of 0.169 m and a mass of 2.02 kg, and each rotates about an axis through its center (as in this table) with an angular speed of 38.6 rad/s. Find the magnitude of the angular momentum of each object.

(a) a hoop
kg · m2/s

(b) a solid cylinder
kg · m2/s

(c) a solid sphere
kg · m2/s

(d) a hollow spherical shell
kg · m2/s