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• (cur) (last) 11:22, 11 March 2010 Ian (Talk | contribs) (226 bytes) (New page: First convert to SI units. In this case tonnes are converted to kilograms which is the standard unit for mass. <math>4\textrm{.}2\ \text{grams}=4200\ \text{kg}</math> <math>W=mg=4200\tim...)

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