A typical hard disk in a desktop computer is a uniformly solid, 400 gram disk 3.5 inches in diameter, and takes 70 milliseconds to spin from rest up to a frequency of 7200 revolutions per minute (r.p.m.). Problem 2.6. What is the moment of inertia of the disk in kgm2?Problem 2.7. Considering that work corresponds to a change in kinetic energy, how much work is done to accelerate the disk from rest to its final spinning rate?
A typical hard disk in a desktop computer is a uniformly solid, 400 gram disk 3.5 inches in diameter, and takes 70 milliseconds to spin from rest up to a frequency of 7200 revolutions per minute (r.p.m.). Problem 2.6. What is the moment of inertia of the disk in kgm2?Problem 2.7. Considering that work corresponds to a change in kinetic energy, how much work is done to accelerate the disk from rest to its final spinning rate?
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
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A typical hard disk in a desktop computer is a uniformly solid, 400 gram disk 3.5 inches in diameter, and takes 70 milliseconds to spin from rest up to a frequency of 7200 revolutions per minute (r.p.m.).
Problem 2.6. What is the moment of inertia of the disk in kgm2?
Problem 2.7. Considering that work corresponds to a change in kinetic energy, how much
work is done to accelerate the disk from rest to its final spinning rate?
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