Question: Two identical spheres are dropped into two different columns: one column contains a liquid of viscosity 0.5 Pas, while the other contains a liquid of

Two identical spheres are dropped into two different columns: one column contains a liquid of viscosity 0.5 Pa·s, while the other contains a liquid of the same density but unknown viscosity. The sedimentation velocity in the second tube is 20% higher than the sedimentation velocity in the first tube. What is the viscosity of the second liquid?

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