63. Two thin-walled cylinder coaxial length l = 10 cm c

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Uploaded: 24.03.2014
Content: fiz008_63.doc (56 kB)

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63. Two thin-walled cylinder coaxial length l = 10 cm can freely rotate around their common axis Z. The radius R of the large cylinder is 5 cm. Between the cylinders, there is a gap of d = 2 mm. Both cylinders are in air under normal conditions. The inner cylinder is rotated at a constant speed n1 = 20 s-1. The outer cylinder is braked. Determine how much longer after the release of the outer cylinder to gain the speed n2 = 1 s-1. When calculating the change in the relative speed of the cylinder neglected. The weight of the outer cylinder is 100 g.

Additional information

Detailed solution. Decorated in Microsoft Word 2003. (Target decided to use formula editor)

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