d is diameter, A is the area and v is the speed ,
Area*speed is the quantity of air flowing per second.
A v = πd² v/4 = 1.5 liters /second = 0.0015 m^3/s
v = 0.0015*4/(π*0.0074²) =35 m/s
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2
Using Bernoulli equation
ρ v₂²/2 = hdg where ρ is density of air and d is density of water
h = ρ v₂²/ (2dg) = 1.25*34.8769² /(2*1000*9.8) =0.07758 = 0.078 m
