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Get Full Access to University Physics - 13 Edition - Chapter 9 - Problem 39e
Get Full Access to University Physics - 13 Edition - Chapter 9 - Problem 39e

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# A uniform sphere with mass 28.0 kg and radius 0.380 m is

ISBN: 9780321675460 31

## Solution for problem 39E Chapter 9

University Physics | 13th Edition

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Problem 39E

A uniform sphere with mass 28.0 kg and radius 0.380 m is rotating at constant angular velocity about a stationary axis that lies along a diameter of the sphere. If the kinetic energy of the sphere is 236 J, what is the tangential velocity of a point on the rim of the sphere?

Step-by-Step Solution:

Solution 39E Step 1: Mass of sphere M = 28 kg Radius of sphere R = 0.380 m Kinetic energy K = 236 J Let us find the moment of the sphere It is given by 2 I = (2/5) × MR Substituting values we get I = (2/5) × 28 kg × (0.380 m) 2 2 I = 2.16 kg m

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