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?

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

What does Mandeep measure?

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

What does Mandeep keep the same?

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

Shoes do not have a regular shape. What could Mandeep do to work out their area?