$(100$ XPs$)$ A $25$ cm long nozzle carrying $30$

liter$/$s is pointed upward at an angle of $60$ to

the horizontal. The inner diameter of the

nozzle at cross$-$section $1$ is $10$ cm and at

cross$-$section $2$ is $4$ cm $.$ The nozzle discharges

water into the atmosphere at cross$-$section $2.$

Find the gage pressure of the water at

cross$-$section $1.$