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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.)

University Physics Volume 1
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter11: Angular Momentum
Section: Chapter Questions
Problem 53P: The Sun’s mass is 2.01030kg , its radius is 7.0105km , and it has a rotational period of...
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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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