[填空题]
Determine the angulazn75( qsu tlflz9-x 438um*h*dzu2n rrv.jcb r momentum of the1ji5 j 5ii(-mkcfxo j6 Earth (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. $\times10^{40} \; kg \cdot m^2$