The speed of a liquid flowing through a pipe increases and its pressure decreases when liquid passes through a narrow constriction in the pipe. Why?

Why does the speed of a liquid increase and its pressure decrease when a liquid passes through constriction in a horizontal pipe ?

When a fluid passes through the constricted part of a pipe, its………….. .

What happeds to the pressure of an ideal liquid when it passes through a region where its speed increases?

An engine pumps liquid of density d continuosly through a pipe of cross-section are A. If the speed with which liquid passes through the pipe is v, then the rate at which kinetic energy is being imparted to the liquid by the pump is

An engine pumps liquid of density ρ continuously through a pipe of cross-section area A. If the speed with which liquid passes through the pipe is v, then the rate at which kinetic energy is being imparted to the liquid by the pump is