A Sample of Blood Is Placed into a Centrifuge of Radius

question 49

Short Answer

A sample of blood is placed into a centrifuge of radius 15.0 cm. The mass of a red corpuscle is 3.0 × 10−¹⁶ kg, and the centripetal force required to make it settle out of the plasma is 4.0 × 10−¹¹ N. At how many revolutions per second should the centrifuge be operated?

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Definitions:

Power Cost

The expense associated with the consumption of electrical power used in the operations of a business or manufacturing process.

Materials Quantity Variance

The difference between the actual amount of materials used in production and the standard amount expected to be used, multiplied by the standard cost per unit.

Raw Materials Price

The cost of raw materials required in the manufacturing process, a critical factor in the overall production cost and pricing strategy.

Variance

The difference between a planned, budgeted, or standard amount and the actual amount incurred or realized.