The water, which flows with a flow rate of $0\mathrm{.}15$ m$\%/$s in the horizontal pipe with a diameter of D$1=30$ cm$,$ is passed by a sudden contraction in the pipe with a D$2=15$ cm apa. In the pipe, which is large in the waterIf the pressure is P$1=500$ kPa, calculate the pressure in the narrow pipe. $($The flow is turbulent andConsider only friction losses caused by sudden contraction. Psu$=1000$ kg$/$m$3).$