Bulb 20 g fastened to the thread length weightless

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Uploaded: 04.02.2014
Content: 10382.jpg (77,87 kB)
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Description

Bulb 20 g fastened to weightless thread length l = 50 cm, is rotated in a horizontal plane about a vertical axis with frequency n1 = 2 v / v. To determine the angular velocity and kinetic energy of the ball, if the length of the filament 3 times shortened, thereby bringing the ball to the axis of rotation.

Additional information

Task 10382. Detailed solution shorthand terms, formulas, laws used in the decision, the withdrawal of the calculation formula and the response.
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