The table given below gives density of different substances.
a. Which is heavier-` 1m^(3)` of steel or `1 m^(3)` of aluminium?
b. Which is heavier-1 kg of steel or 1 kg of cork?

The density of sand is 1500 "kg/m"^3 . What is the mass of 1m^3 of sand ?

If 103 cm^(3) of aluminium has a mass of 0.280 kg. Find its density in kg//m^(3)

The density of water is ........ "kg/m"^3 .

A piece of steel has a volume of 10 cm^(3) and a mass of 80 g. What is its density in: kg//m^(3)

An aluminium wire of cross-sectional area (10^-6)m^2 is joined to a steel wire of the same cross-sectional area. This compound wire is stretched on a sonometer pulled by a weight of 10kg. The total length of the compound wire between the bridges is 1.5m of which the aluminium wire is 0.6 m and the rest is steel wire. Transverse vibrations are setup in the wire by using an external source of variable frequency. Find the lowest frequency of excitation for which the standing waves are formed such that the joint in the wire is a node. What is the total number of nodes at this frequency? The density of aluminium is 2.6 xx (10^3) kg//m^3 and that of steel is 1.04 xx 10^(4) kg//m^2 (g = 10m//s^2)

What is the potential energy of a 10 kg steel ball which has been raised vertically 9 m above the floor ?

If the relative density (R.D.) of a substance is 1.2, state its density in the S.I. system, if density of water at 4^@C is 1000 "kg m"^(-3) .

Given the density of air is 1.29 kg m^(-3) . Then, the relative density of air is ________.

The density of cooking oil is 1 .2 "g/cm"^3 . What is its density in "kg/m"^3 ?

If density of a certain gas at 30^(@)C and 768 Torr is 1.35kg//m^(3) , then density at STP is