Homework #$3$

Problem #$1(10$ points$)$

Calculate the Stokes' settling velocity in water at $20C$ of a spherical particle with a diameter of

$10m$ and a density of $1\mathrm{.}5\frac{g}{c}{m}^3.$ At that temperature, the density of water is $0\mathrm{.}998\frac{g}{c}{m}^3,$ and

the absolute viscosity is $1\mathrm{.}002{10}^{-2}\frac{g}{c}m*s.$ Check that the assumption of Stokes's law is met

$($Hint: Reynolds number$).$