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problem 1: At what height above the surface of the earth would a space station require to orbit if its orbital period is 18 hrs?

problem 2: A space probe orbits an asteroid. The orbital radius is 6.42 x 105 m. At this distance the gravitational field strength is 1.5 x 10­2 N/kg. Detremine the mass of the asteriod?

problem 3: Compute the gravitational field strength on the surface of mars. Mars has a radius of 3.43 x 106 m and a mass of 6.37 x 1023 kg.

problem 4
: At what distance from the Earth’s surface is the gravitational field strength 7.33 n/kg?

problem 5: On the surface of Planet X an object has a weight of 63.5 N and a mass of 22.5 kg. Find out the gravitational field strength on the surface of Planet X? 

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