An iron casting weighs 27kg in air 18kg in water. What is the volume of the covities in the casting ? (Density of iron `=7800kgm^(-3)`)

An iron casting containing a number of cavities weight 6000N in air and 4000N in water. What is the volume of the cavities in the casting? Density of iron is 7.87g//cm^(3) . Take g = 9.8 m//s^(2) and density of water = 10^(3) kg//m^(3) .

An iron casting has a number of cavities in it. It weighs 6000 N in air and 4000 N in water. Determine the total volume of all the cavities in the casting. The density of iron (without cavities) is 8.0 g//cm^(3), rho_(w)= I g//cm^(3) .

An iron ball has an air space in it. It weighs 1 kg in air and 0.6 kg in water .Find the volume of air space. Density of iron =7200 "kgm"^(3).

An iron casting containing a number of cavities weighs 6000 N in air and 4200 N in water. What is the total cavity volume in the casting? The density of solid iron is 7.87 g/ cm^(3)

A piece of alloy of gold and silver weighs 2kg in air and 1.86 kg in water. What is the mass of silver? Density of gold =19.3xx10^(3) "kgm"^(-3) . Density of silver =10.5 xx 10^(30 "kg" m^(-3).

A pieceo of ice is floating in water . Find the fraction of volume of he piece of ice outside the water (Given density of ice =900 kg//m^(3) and density of water =1000 kg//m^(3))

A iron shell loses half its weight in water. What portion of its volume is hollow ? ( Relative density of iron =7.5)

What is the percentage of carbon in pig iron and cast iron ?

What is the percentage of carbon in pig iron and cast iron?