The viscous force on an oil drop is measured to be 3.0
Chapter 9, Problem 9.69(choose chapter or problem)
The viscous force on an oil drop is measured to be 3.0 1013 N when the drop is falling through air with a speed of 4.5 104 m/s. If the radius of the drop is 2.5 106 m, what is the viscosity of air?
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