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# (a) Calculate time required for a virus particle that is 50 nm (50x10-9 m) in diameter...

(a) Calculate time required for a virus particle that is 50 nm (50x10-9 m) in diameter with a density of 1.03 g cm-3 suspended in water with a density of 1.0 g cm-3 to settle out of a water column that is 3 m deep. Assume the dynamic viscosity is 1x10-3 kg m-1 s-1.

(b) What is the time required if the virus particle was attached to an Al(OH)3 floc that is 0.1 mm in diameter with a density of 2.0 g cm-3? (Ignore contribution of virus particle to diameter and density of the floc.)  #### Earn Coins

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