A square brass plate is 2 mm thick and has a mass of 1.05 kg. The density of the brass is 8.4 g/cm^{3}. Calculate the length of the plate in centimeters

Volume = ^{mass}/_{density }_{1050cm}^{3}/_{8.4} = 125 cm^{3}∴ L x L x 0.2 cm = 125 cm^{3}

L2 =^{ (125 cm)}/0.2 = 625L = √(625 ) = 25 cm

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