10. Assume this asteroid has the shape of a sphere.

10. Assume this asteroid has the shape of a sphere. A rock
sitting on the surface of the asteroid has a weight of 100 Newtons. What would the weight of this rock be if it were moved to a distance above the surface equal to the radius of the asteroid? Include calculations or the logic used to get your answer. (It may be helpful to draw a picture to better visualize what is going on). How is the mass of the rock affected by its change in position?

11. At some point in its orbit, our asteroid is moving with a speed of 20 kilometers per second. Determine the kinetic energy of the asteroid assuming it has a mass of 1000 kilograms. Be sure your answer is in the correct units of energy. (1 kilometer = 1000 meters; 1 Joule = kg-m2/sec2).

12. If the distance from the Sun varied during our asteroid’s orbit, would its kinetic energy change? Explain. Would its potential energy change? Explain. Would the total energy (sum of kinetic and potential energy) of the asteroid change? Explain your answer.

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