Question

We saw in Example 5.7 how a centrifuge can be used to separate cells from a liquid. To increase the speed at which objects can be separated from solution, it is useful to make the centrifuge’s speed as large as possible. If you want to design a centrifuge of diameter 70 cm to have a force of 5 X106 times the force of Earth’s gravity, what is the speed (in rev/s) of the outer edge of the centrifuge? Such a device is called an ultracentrifuge.

Answer 1

2 v R (5xio")*34 () v = (5x109) x 9.88 (070) 3 Va 4.14 X 10 m/s va WR 3 4.14 x 10 W = (0.70%) 11832.1596 rad/ 11832. 1596 revela 1883.15 sevis 2 T