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What is common angular speed

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The tape in a videotape cassette has a total length 235 m and can play for 2 h. As the tape starts to play, the full reel has an outer radius of 39 mm and an inner radius of 14 mm. At some point during the play, both reels will have the same angular speed. What is this common angular speed?

Reference no: EM132441472

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