BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300

Solutions

Chapter
Section
BuyFindarrow_forward

College Physics

11th Edition
Raymond A. Serway + 1 other
ISBN: 9781305952300
Textbook Problem

A sample of blood is placed in a centrifuge of radius 15.0 cm. The mass of a red blood cell is 3.0 × 10−16 kg, and the magnitude 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?

To determine
The number of revolutions per second the centrifuge to be operated.

Explanation

Given Info: The magnitude of centrifugal force on a sample of blood is 4.0×1011N ,  the mass of the sample of blood is 3.0×1016kg , and the radius of the centrifuge is 0.150m .

Explanation: The number of revolutions per second is about the angular speed of the centrifuge.

The formula for the angular speed or number revolutions per second the centrifuge to be operated is,

ω=Fcmr

  • Fc is the centrifugal force.
  • m is mass of the blood sample.
  • r is radius of centrifuge.

Substitute 4.0×1011N for Fc , 3.0×1016kg for m , and 0.150m for r to find ω

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

Additional Science Solutions

Find more solutions based on key concepts

Show solutions add

Trabecular bone readily gives up its minerals whenever blood calcium needs replenishing. T F

Nutrition: Concepts and Controversies - Standalone book (MindTap Course List)

What are genomes?

Human Heredity: Principles and Issues (MindTap Course List)