Calculate the magnitude of the Earth's translational (orbital) angular momentum relative to the Sun when the Earth is at location A and when the Earth is at location B as displayed in the representation of the situation in the representations. The mass of the Earth is $6$ x $10^{24}kg$ and its distance from the Sun is $1.5$ x $10^{11}m$.

The Earth makes one complete orbit of the Sun in 1 year, so its average speed is:

$v = \frac{2\pi(1.5 x 10^{11}m}{(365)(24)(60)(60)s} = 3.0 x 10^4 m/s$