An incompressible fluid flows without viscosity at through a pipe of radius . Without changing height, it flows into a pipe whose radius is . If the water pressure is in the diameter pipe, what is its pressure in the diameter pipe?

The mass density of the fluid is .

An incompressible fluid flows without viscosity at through a pipe of radius . Without changing height, it flows into a pipe whose radius is . If the water pressure is in the diameter pipe, what is its pressure in the diameter pipe?

The mass density of the fluid is .