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Unformatted text preview: f directly, but rather are written in a way that is easier to remember but requires that you solve the expressions for f to determine the uncertainty that you will quote in the calculated quantity. These rules can be applied in turn on more complicated functions. For example the uncertainty in a function that involves both the sum and product of measured quantities h ( a,b,c ) = a b + c can be determined by rst nding the uncertainty in the individual components, i.e. nd g ( a,b ) for g ( a,b ) = a b using formula (2) and then rewrite h as h ( g,c ) = g + c and apply formula (1). Practice Consider measurements of the width w and length l of a piece of paper used to calculated the area of the paper using A = w l . 14...
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 Fall '08
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 Physics

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