[填空题]
Determine the angular m4z/ u .k --wtnim*erfdomentum of the f )8gzk(t rq-9e;q t-ndvz ;axEarth
(a) about its rotation axis (assume the Earth is a uniform sphere), $\times 10^{33} \; kg \cdot m^2$
(b) in its orbit around the Sun (treat the Earth as a particle orbiting the Sun). The Earth has mass $6 \times 10^{24} \; kg$ and radius $6.4 \times 10^{6} \; m$ and is $1.5 \times 10^{8} \; km$ from the Sun. $\times10^{40} \; kg \cdot m^2$
