The stress-strain curves for brass, steel and rubber are shown in the figure. The lines $A, B$ and $C$ are for

The diagram shown below represents the applied forces per unit area with the corresponding change $X$ (per unit length) produced in a thin wire of uniform cross-section in the curve shown. The region in which the wire behaves like a liquid is

Consider a $h \mathrm{cm}$ high cylindrical vessel of radius $7 \mathrm{cm}$ filled with a homogeneous liquid. It is known that the force with which the liquid presses on the sides of the vessel is equal to the force exerted by the liquid on the bottom of the vessel. Then what is $h=?$