Practice: The Earth has mass 5.97 x 10^{24} kg, radius 6.37 x 10^{6} m. The Earth-Sun distance is 1.5 x 10^{11} m. Calculate its angular momentum as it spins around itself. Treat the Earth as a solid sphere of uniform mass distribution.

BONUS 1: Treating the Earth as a point mass, calculate its angular momentum as it spins around the Sun.

BONUS 2: Does the Earth have linear momentum as it spins around (i) itself; (ii) the Sun?