Question
Spherical particles of pollen are shaken up in water and allowed to settle. The depth of the water is . What is the diameter of largest particles remaining in suspension on hour later?

None of these



easy
Solution
For pollen particles not reaching the bottom in 1 hour,
Due to viscosity effects, the particles will move with terminal velocity v given by
Substituting,
and diameter,
.
SIMILAR QUESTIONS
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