Calculate the density of a lump of ebony wood. It has a mass of $60 \mathrm{g}$ and a volume of $50 {\mathrm{cm}}^3$ in $\raisebox{1ex}{$\mathrm{g}$}\!\left/ \!\raisebox{-1ex}{${\mathrm{cm}}^3$}\right.$.

Write only the numerical value without any units in the given box.

Calculate the density of a lump of Steel. It has a mass of $156 \mathrm{g}$ and volume of $20 {\mathrm{cm}}^3$ in $\raisebox{1ex}{$\mathrm{g}$}\!\left/ \!\raisebox{-1ex}{${\mathrm{cm}}^3$}\right.$.

Write only the numerical value without any units in the given box.

Calculate the density of a lump of ice in $\raisebox{1ex}{$\mathrm{g}$}\!\left/ \!\raisebox{-1ex}{${\mathrm{cm}}^3$}\right.$. It has a mass of $8.9 \mathrm{kg}$ and a volume of $10000 {\mathrm{cm}}^3$.

Write only the numerical value without any unit in the given box.

Calculate the density of a lamp of osmium. It has a mass of $15.82 \mathrm{kg}$ and a volume of $700 {\mathrm{cm}}^3$ in $\raisebox{1ex}{$\mathrm{g}$}\!\left/ \!\raisebox{-1ex}{${\mathrm{cm}}^3$}\right.$.

Write only the numerical value without any unit in the given box.

Calculate the density of a lamp of lithium. It has a mass of $106 \mathrm{g}$ and a volume of $200 {\mathrm{cm}}^3$ in $\raisebox{1ex}{$\mathrm{g}$}\!\left/ \!\raisebox{-1ex}{${\mathrm{cm}}^3$}\right.$.

Write only the numerical value without any unit in the given box.

Water has a density of $1.0 \mathrm{g}/{\mathrm{cm}}^3$. Determine among the following objects which will float in water. A lump of:

1) balsa Wood

2) ebony Wood

3) Steel

4) Ice

5) Osmium

6) Lithium

Mandeep decided to investigate how much pressure exert on different shoes.

What is Mandeep going to change?