Question: For a particle with a diameter (d) = 5 m, density () = 1 g/cm3, its atmospheric settling velocity = 61.9 m/d. If the particle

For a particle with a diameter (d) = 5 m, density () = 1 g/cm3, its atmospheric settling velocity = 61.9 m/d. If the particle density is doubled, the settling velocity would be _______ m/d. (Assume the Stokes' law is still applicable, and other parameters of the particles and atmosphere remain constant).

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