A taste of blood is placed contained by a centrifuge of radius 10.0 cm. The mass of a red blood cell is 3.0 10-16 kg,?

A sample of blood is placed in a centrifuge of radius 10.0 cm. The mass of a red blood cell is 3.0 10-16 kg, and the size 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?
rev/s


Answers:    R: revolutions/sec
r: radius of the centrifuge
m: mass of RBC
a: acceleration
v: velocity

a = v^2/r
v = (2*pi*r*R)

F on RBC to settle = F on RBC by the fuge
4E-11 = ma

I construe you can get it from there...


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