Physics, 27.06.2019 02:20 iyana479

Acompact disc (cd) stores music in a coded pattern of tiny pits 10^−7m deep. the pits are arranged in a track that spirals outward toward the rim of the disc; the inner and outer radii of this spiral are 25.0 mm and 58.0 mm, respectively. as the disc spins inside a cd player, the track is scanned at a constant linear speed of 1.25 m/s. a)what is the angular speed of the cd when scanning theinnermost part of the track? the outtermost part of thetrack? b)the maximum playing time of a cd is 74.0 minutes. whatwould be the length of the track on such a maximum-duration cd ifit were stretched out in a straight line? c) what is the average angular acceleration of amaximim-duration cd during its 74.0 minutes playing time? take the direction of rotation of the disc to be positive.

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Acompact disc (cd) stores music in a coded pattern of tiny pits 10^−7m deep. the pits are arranged i...

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