(a) What is the acceleration due to gravity on the surface of planet X? (b) An interstellar astronaut lands on the equator of this planet and finds that his apparent weight matches his weight on Earth. What is the period of rotation of planet X?

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A: Write a given values of this question. M=1.6×1.99×1030kgdr=2×3.5cm=0.070mr=18km=18000m

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Q: A satellite circles the earth in an orbit whose radius is 2.90 times the earth's radius. The earth's…

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A: Given: Time taken by a Jupiter to rotate once is 9.84 h. Known: Radius of the Jupiter is 6.99×107 m.…