Does the fluid have kinetic energy on the inside of the pipe outlet, while it has zero kinetic energy on the outside of the outlet? ?
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The fluid has kinetic energy on the inside of the pipe outlet; outside the outlet, this kinetic energy is zero. But doesn’t the water outside the outlet also have velocity? ? I can’t understand this concept. . . . . . . I know that high-pressure water guns work on the principles of impulse and momentum, but there is also speed involved; I can’t understand how the kinetic energy can be 0. . . . . . . . . . Where does that energy loss go? Why is the pressure the same on both the inside and outside of the outlet?
The internal and external pressures are the same; it simply means that the pressure at this point can be either internal or external. I’m also confused about kinetic energy; could any experts give me some advice?