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Published September 23, 2018 at 1024 × 768 in 9/17-9/21 (Vectors,Cir Mot)

PhyFl18SS1.6.11 Definition of a radian. The question came up . . . “Why don’t radians have any units?” Because they are a ratio of the arc length of a circle (∆s) and the radius of that d

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