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The 20-g centrifuge at NASA’s Ames Research Center in Mountain View, California, is a cylindrical tube 58 ft long with a radius of 29 ft (Fig

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The 20-g centrifuge at NASA’s Ames Research Center in Mountain View, California, is a cylindrical tube 58 ft long with a radius of 29 ft (Fig. P7.18). If a rider sits in a chair at the end of one arm facing the center, how many revolutions per minute would be required to create a horizontal normal force equal in magnitude to 20.0 times the rider’s weight?