Question

Estimate the downward terminal velocity or the above droplet assuming the electric field is off the...



Estimate the
downward terminal velocity or the above droplet assuming the electric field is off the viscosity of air is 1.85x10^5 N*s/m^2.



If the reticule
line separation is about 0.6mm, how long would it take such a droplet to fall between the lines with no electric field on?



Why is it
important to choose a droplet with a charge of only a few (<5 or so) electron charges?


radius: 5.505*10^-7 nanometers
density: 1.05 g/ml
Science   Advanced-Physics   
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