Wednesday, March 10, 2010

How to find the thickness of the metal sheet?

A sheet of metal is 73.6 mm wide and 36.3 mm long. If it weighs 6.052 g and the density of the metal is 2.70 g/cm3, what is the thickness of the sheet (in mm)?....help plzzzz


How to find the thickness of the metal sheet?
Use dimensional analysis to solve for volume:





(6.052 grams)(cm^3/2.70) = 2.241481 cm^3





T = Thickness


W = Width


L = Length





T*W*L = 2.241481 cm^3





To convert mm measurement into cm move the decimals one place to the left:





T*7.36*3.63 = 2.241481 cm^3





T = 2.241481/(7.36*3.63)





T = 2.241481/2.67168





T = 0.0839 cm





T = 0.0839 cm





= 0.839 mm





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