While a satellite orbits a celestial body in space, its angular momentum is always conserved, so it is important to be able to measure the angular momentum of a satellite. Suppose some comet with 1x10^{15} kg of mass was in orbit around the sun, and at some point in time its position (in a coordinate system that the sun was at the center of) was **r** = (1.8 x 10^{10} km) **i** + (2.7 x 10^{10} km) **k** moving with a velocity of **v** = (- 35 km/s) **j** + (60 km/s) **k**. What is the angular momentum (in vector form) of this comet about the sun?

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