A27.0 kg iron weight lifting plate has a volume of 3430 cm3 . what is the density of the iron plate in g/cm3?

Weight of iron weight lifting plate = 27.0 kg.

1 kg = 1000 grams

27.0 kg  = 27 * 1000 = 27000 grams.

Volume of the plate = 3430 cm^3.

Density is given by formula (ρ) =

Plugging values of mass and volume in above formula, we get

ρ=

Dividing 27000 by 3430, we get  

ρ=7.87 g/cm^3.

Therefore, the density of the iron plate 7.87 g/cm^3.

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

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