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The outside diameter of the playing area of an optical Blu-ray disc is 11.75 cm, and the inside diameter is 4.50 cm. When viewing movies, the disc rotates so that a laser maintains a constant linear speed relative to the disc of 7.50 m/s as it tracks over the playing area. 5) What is the average angular acceleration of a Blu-ray disc as it plays an 7.5-h set of movies? (Express your answer to two significant figures.)

The outside diameter of the playing area of an optical Blu-ray disc is 11.75 cm, and the inside diameter is 4.50 cm. When viewing movies, the disc rotates so that a laser maintains a constant linear speed relative to the disc of 7.50 m/s as it tracks over the playing area. 5) What is the average angular acceleration of a Blu-ray disc as it plays an 7.5-h set of movies? (Express your answer to two significant figures.)

College Physics
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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The outside diameter of the playing area of an optical Blu-ray disc is 11.75 cm, and the inside diameter is 4.50 cm. When viewing movies, the disc rotates so that a laser maintains a constant linear speed relative to the disc of 7.50 m/s as it tracks over the playing area. 5) What is the average angular acceleration of a Blu-ray disc as it plays an 7.5-h set of movies? (Express your answer to two significant figures.)
Transcribed Image Text:The outside diameter of the playing area of an optical Blu-ray disc is 11.75 cm, and the inside diameter is 4.50 cm. When viewing movies, the disc rotates so that a laser maintains a constant linear speed relative to the disc of 7.50 m/s as it tracks over the playing area. 5) What is the average angular acceleration of a Blu-ray disc as it plays an 7.5-h set of movies? (Express your answer to two significant figures.)
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