Acompact disc (cd) stores music in a coded pattern of tiny pits 10^β7m 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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Physics, 22.06.2019 06:30, klorpo4055
In positive numbers less than 1, the zeros between the decimal point and a non-zero number are blank significant
Answers: 1
Physics, 22.06.2019 13:50, Geo777
Two students, each riding bicycles, start from the same apartment building and ride to the same building on campus, but each takes a different route. the first student rides 1100 m due east and then turns due north and travels another 1430 m before arriving at the destination. the second student heads due north for 1930 m and then turns and heads directly toward the destination. at the turning point, how far is the second student from the destination?
Answers: 3
Acompact disc (cd) stores music in a coded pattern of tiny pits 10^β7m deep. the pits are arranged i...
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