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A graduated cylinder is filled to the 40.00mL markwith a min

    A graduated cylinder is filled to the 40.00mL markwith a mineral oil.  The masses of thecylinder before and after the addition of the mineral oil are 124.966 g and159.446 g, respectively.  In a separateexperiment, a metal ball bearing of mass 18.713 g is placed in the cylinder andthe cylinder is again filled to the 40.00 mL mark with mineral oil.  The combined mass of the ball bearing andmineral oil is 50.952 g.  Calculate the density and radius of the ball bearing.  (The volume of a sphere of radius r is (4/3)pr3.)

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