(Solved): help Part 2: Stokes Law The Stokes Law helps us determine the settling velocity of a particle, assum ...

Part 2: Stokes Law The Stokes Law helps us determine the settling velocity of a particle, assuming the particle is less than $100?\mathrm{m}$. Microorganisms with slow settling velocities are going to be more of an environmental problem because they will likely travel greater distances and therefore infect a greater area. Calculate the settling velocity for two different microbes one might find in the soil, a Bacillus anthracis endospore diameter $(1.2?\mathrm{m})$ and a Hanta virus particle $(0.07?\mathrm{m})$. Show your work with units. $\begin{array}{rl}& 2?Mv=?d^{2}g\\ =& 0012{\mathrm{mm}}^{18?}\\ =& 00012\mathrm{cm}\end{array}$ Settling velocity for B. anthracis endospore $.0063\mathrm{cm}$ where $v=$ settling velocity $?=1.8\times 10^4\mathrm{g}/\mathrm{cm}\mathrm{s}$ (air viscosity) $?=$ particle density $(1.45\mathrm{g}/{\mathrm{cm}}^3$ for endospores and $1.18\mathrm{g}/{\mathrm{cm}}^3$ for viruses) $\mathrm{d}=$ particle diameter $\mathrm{g}=$ acceleration due to gravity $=981\mathrm{cm}/{\mathrm{s}}^2$ Settling velocity for Hanta virus particle $0.0000018\mathrm{cm}/\mathrm{s}$ What does this tell you about these two microbes?