//Length of tube above surface(in m):
l=1;
//Depth of exit below water surface(in m):
z=7;
//Acceleration due to gravity(in m/sec^2):
g=9.81;
//Density of water(in kg/m^3):
d=999;
//Atmospheric pressure(in N/m^2):
p1=1.01*10^5;