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As with the settling velocity of sediment grains in water it is dependent on the rust particle size, geometry, density etc.
But, as a generalisation the same equation to calculate the fall velocity of sediment in water appears to be multi-faceted, that is to say it has no parameters that implicitly restrict it to be used with water.
It is,
Fall velocity = Root of ((4/3*Cd) * ((ρs-ρ)/ρ)*g*D)
where the usual notation applies. It's pretty hard to follow typed out but im sure a quick Google search will provide you with this equation in an easier to read format!
Hope this helps/is right!
Wiki User
∙ 14y ago
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What is the approximate velocity of sound in the air?
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