Calculate Absorber Thickness: 4.1 x 4.2 Inch Paper Weighing 36 Grams

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vvbandit
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Heres the question, a piece of paper is 4.1 inch by 4.2 inch and weighs 36grams(it was a typo in the book it should be .36, but I am supposed to go with 36.) The question wants the absorber thickness, which is the density*distance in grams/centimeters^2
 
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