Separation plate has squared shape section: $1\mathrm{.}1m1\mathrm{.}1m$

Calculate:

a$.$ Atmospheric pressure $($sg of mercury is $13\mathrm{.}54)(1$ mark$)$

b$.$ Pressure in compartment #$1(3$ marks$)$

c$.$ Magnitude, direction and point of application of resultant force acting on the separation plate $(3$ marks$)$

d$.$ Magnitude and direction of the resultant force acting on the window $(3$ marks$)$