Every object in the universe that has mass exerts a gravitational pull, or force, on every other mass. The size of the pull depends on the masses of the objects. You exert a gravitational force on the people around you, but that force isn't very strong, since people aren't very massive.
Density can be kg/m^3 or g/cm3 In g/cm3 density =mass /volume =111g/23cm3 =4.826g/cm3.
In kg/m3,density=mass/volume. converting mass in grams to kg, 1000g=1kg,111g=0.111kg. cm3 to m3, 1cm3=10^-6m3, 23cm3=0.000023m3 density=0.111kg/0.000023m3 or 2.3*10^-5=4,826.1kg/m3.
