(Answered) In armageddon bruce willis and the boys land on an asteroid

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In Armageddon Bruce Willis and the boys land on an asteroid so as to blow it up and save the planet. Asteroid Ceres has a radius of 287 km and a mass of 9.4X10^20 kg.

1. What is the value of g at the surface?

2. How fast would you have to run to put yourself into orbit?

3. What is the value of g at a radius of 2000 km.

4. What would be the orbital period of a probe in that orbit?

5. What would be the speed of the probe?

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