Highlights:Forces are used to investigate how centrifugation and sedimentation can characterize small particles.
Abstract:This detailed problem investigates how sedimentation and analytical ultracentrifugation can be used to characterize the size of small molecules in a non-destructive way. Students calculate terminal velocity using an analysis of forces (buoyant, drag, and gravity) and can see why ultracentrifugation (where acceleration is a million times g or more) is required for characterizing small molecules.
Classical Mechanics > Motion in One Dimension > Velocity, Classical Mechanics > Motion in Two Dimensions > 2D Acceleration, Classical Mechanics > Newton's Second Law > Force & Acceleration, Fluid Mechanics > Statics of Fluids > Density and Buoyancy
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