# physical science

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how do i find how long the steel is in a 156 kg coil of sheet steel that is .80 mm thick and 50 cm wide.

• physical science -

Use density.

volume= Length*thickness*width

mass= density*volume
156kg=densitysteel*length*thickness*width

length= 156kg/(density*thickness*width)

look up density of steel. Watch units. thickenss is in mm,width is in cm, density will be in whateverunits.

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