Question $8$

$($Max $10)$

Solid spherical particles having a diameter of $0\mathrm{.}090mm$ and a solid density of $2002k\frac{g}{m^3}$ are settling in a solution of water at $26\mathrm{.}7C.$ The volume fraction of solids in the water is $0\mathrm{.}45.$ Calculate the settling velocity and Reynolds number. $($Use the Maude and Whitmore empirical method$).$