Welding: Principles and Applications (MindTap Course List)
8th Edition
ISBN:9781305494695
Author:Larry Jeffus
Publisher:Larry Jeffus
Chapter25: Testing And Inspection
Section: Chapter Questions
Problem 18R: What is underfill?
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Question
The 7.5-lb disk A has a radius r A = 6 in. and is initially at rest. The 10-lb disk B has a radius r B = 8 in. and an angular velocity w0 of 900 rpm when it is brought into contact with disk A. Neglecting friction in the bearings, determine (a) the final angular velocity of each disk, (b) the total impulse of the friction force exerted on disk A.
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