How Does a Centrifuge Separate Substances by Density?

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    Centrifuge Physics
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A centrifuge operates on the principle of centrifugal force, which causes denser substances to move outward and separate from less dense substances. When blood is centrifuged, plasma, being less dense, rises to the top, while blood cells, which are denser, settle at the bottom. This separation indicates that plasma and blood cells have different densities. The equation governing this process relates to the centrifugal force acting on the substances based on their mass and the radius of rotation. Understanding these principles is crucial for effectively utilizing centrifuges in various applications.
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Homework Statement


How does centrifuge work? a.) What is the physical principle behind the function of this device? b.) What is the difference between the stuff that goes to the top and the stuff that goes to the bottom. c.) What equation shows this? d.) When you centrifuge blood, plasma appears at the top of the tube while the blood cells appear at the bottom. What can you conclude about plasma and blood cells because of this?

Homework Equations





The Attempt at a Solution

 
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Hint: the force in a centrifuge is always pointing in.
 
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