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Unformatted text preview: ratio of the sine of the angle of incidence to the angle of refraction is equal to the ratio of the speeds of light in air and that in water. 4. The cost (in dollars) of producing n cars of a certain model is 10000 n + 15000 n + 1 , The cars are sold for $12 , 000 each. Based on this information, how many cars should be produced to maximize proﬁt? Do you think this answer is sensible? 5. Let b x c denote the greatest integer which is less than or equal to x . In other words, b x c is x rounded down to an integer. Find the point on the graph of y = b x c + x which is closest to the point (1 , 0). What about the point (2 , 0)? 1 Wikipedia:Fermat’s principle 2...
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 Fall '09
 BenedictGross
 Math, Light, Snell's Law, Total internal reflection, light entering water

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