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Unformatted text preview: D is the separation of the headlights, then D = L R , where the small angle approximation is made. This is valid for R in radians. Thus, L = D R = 1 . 4 m 1 . 34 10 4 rad = 1 . 10 4 m = 10 km ....
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 Fall '08
 SPRUNGER
 Physics, Light

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