A person drops 3 aluminum balls of diameters 2 mm, 4 mm, and 10 mm into a

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A person drops 3 aluminum balls of diameters 2 mm, 4 mm, and 10 mm into a tank filled with glycerin at 22°C (μ = 1 kg·m/s), and measured the terminal velocities to be 3.2 mm/s, 12.8 mm/s, and 60.4 mm/s, respectively. The measurements are to be compared with theory using Stokes law for drag force acting on a spherical object of diameter D expressed as FD = 3πμ DV for Re << 1. Compare experimental velocities values with those predicted theoretically.

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