Your answer is partially correct. Two disks are mounted (like a merry-go-round) on low-friction bearings on the same axle and can be brought together so that they couple and rotate as one unit. The first disk, with rotational inertia 2.58 kg-m2 about its central axis, is set spinning counterclockwise (which may be taken as the positive direction) at 140 rev/min. The second disk, with rotational inertia 7.60 kg-m2 about its central axis, is set spinning counterclockwise at 941 rev/min. They then couple together. (a) What is their angular speed after coupling? If instead the second disk is set spinning clockwise at 941 rev/min, what are their (b) angular velocity (using the correct sign for direction) and (c) direction of rotation after they couple together? (a) Number i 77.24 Units N-m/rad (b) Number i -69.82 Units rev/s (c) clockwise

Your answer is partially correct. Two disks are mounted (like a merry-go-round) on low-friction bearings on the same axle and can be brought together so that they couple and rotate as one unit. The first disk, with rotational inertia 2.58 kg-m2 about its central axis, is set spinning counterclockwise (which may be taken as the positive direction) at 140 rev/min. The second disk, with rotational inertia 7.60 kg-m2 about its central axis, is set spinning counterclockwise at 941 rev/min. They then couple together. (a) What is their angular speed after coupling? If instead the second disk is set spinning clockwise at 941 rev/min, what are their (b) angular velocity (using the correct sign for direction) and (c) direction of rotation after they couple together? (a) Number i 77.24 Units N-m/rad (b) Number i -69.82 Units rev/s (c) clockwise

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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