Water flow from point $1$ to point $2$ as show in the following figure.

Determine

$p$ und $h,$ if $D_1=0\mathrm{.}20m$;

$D_2=0\mathrm{.}40m$;$Z_1=4m$

$Z_2=2m$;$,{}_W=$

$1000k\frac{g}{m^3}$

${}_P=13560k\frac{g}{m^3}$;$V^{}=0\mathrm{.}3142\frac{m^3}{s}$