Created by StemPy LabWhy is a little larger at the poles than at the equator?
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← Because the Earth spins, a body at the equator needs a centripetal acceleration ω²R, which makes its apparent g smaller. How big is ω²R? (R = 6.4 × 10⁶ m, one turn in 24 hours.)Masses of 4.0 kg and 9.0 kg are 1.0 m apart. At what distance from the 4.0 kg mass, on the line between them, is the gravitational force on a third mass zero? →
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