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Vie Favorte Tools Help My Notes Points Bauer hys19PO3a containers are spun rapid

ID: 1604928 • Letter: V

Question

Vie Favorte Tools Help My Notes Points Bauer hys19PO3a containers are spun rapidly about a central alis. The Dentinugal acoeleration Lune scientists use ultracentriuges to separate or to remove molecules from suspension. Samples in a symmetric array of biological components they experience in their moving reference frame acts as 'artificial gravity to effect a rapid separation. If the sample eentaners are 18 an from the rotation axis, what rotation frequencyis producem isreguiredto 10 g? Answer Save Progress SP008

Explanation / Answer

given

r = 18 cm = 0.18 m

a_rad = 1.88*10^5*g

w = ?

we know,

radial acceleration, a_rad = r*w^2

1.88*10^5*g = r*w^2

==> w = sqrt(1.88*10^5*g/r)

= sqrt(1.88*10^5*9.8/0.18)

= 3.20*10^3 rad/s   or 5.09*10^2 rev/s