69. Steel ball (density ρ1 = 9 g / cm3) decreases at a constant rate in the vessel with glycerol (ρ2 = 1,26 g / cm3, and a dynamic viscosity η = 1,48 Pa ∙ s). Considering that the Reynolds number Re ≤0,5 the law of Stokes, determine the limiting diameter ball dmax.

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)