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A centrifuge is a device in which a small container of material is rotated at a...

A centrifuge is a device in which a small container of material is rotated at a high speed on a circular path. Such a device is used in medical laboratories, for instance, to cause the more dense red blood cells to settle through the less dense blood serum and collect at the bottom of the container. Suppose the centripetal acceleration of the sample is 2.61 x 103 times as large as the acceleration due to gravity. How many revolutions per minute is the sample making, if it is located at a radius of 5.86 cm from the axis of rotation?

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Answer #1

Angular acceleration ? and radius r are given. we are supposed to find the number of revolutions per minute ? 2.61x10° xg 2.61x10° g 052.61x10*x9.8 0.0586 v- 2.61x10* x9.8x0.0586 v-38.72m/s 38.72 0.0586 38.72 0.0586 rad/s ?-39645.05 rad/min 39645.05 ?-- -rev/min ?-6309. 706 rev/min 0-6309. 706 RPMSample is making 6309.706 revolutions per minute

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