Asample of blood is placed in a centrifuge of radius 16.0 cm. the mass of a red blood cell is 3.0 ✕ 10−16 kg, and the magnitude of the force acting on it as it settles out of the plasma is 4.0 ✕ 10−11 n. at how many revolutions per second should the centrifuge be operated?

Explanation:

The centripetal force is given by:

Here m is the body's mass in which the force is acting and is the centripetal acceleration:

Here v is the speed of the body and r its radius. The speed is given by:

Replacing (3) in (2):

Replacing (4) in (1) and solving for f:

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