Solution: The acceleration due to gravity at the north pole
Chapter 13, Problem 13.37(choose chapter or problem)
The acceleration due to gravity at the north pole of Neptune is approximately \(11.2 \mathrm{~m} / \mathrm{s}^{2}\). Neptune has mass \(1.02 \times 10^{26}\mathrm{\ kg}\) and radius \(2.46 \times 10^4\mathrm{\ km}\) and rotates once around its axis in about 16 h. (a) What is the gravitational force on a 3.00-kg object at the north pole of Neptune? (b) What is the apparent weight of this same object at Neptune’s equator? (Note that Neptune’s “surface” is gaseous, not solid, so it is impossible to stand on it.)
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