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Find the orbital speed of an ice cube in the rings of Saturn, if the mass of Saturn is 5.67 × 1026 kg and the rings have an average radius of 100,000 km.

a aircraft is flying to north with velocity of 350 m/s, aside wind of velocity 100m/s is blowing due to west. what is the resultant velocity ? what is the direction of resultant velocity? how far this aircraft travels during 1 hour?

i am doing the pre test and have 10 questions