So, i'm tweaking my understanding of applying Bernoulli's equation, and i'm having a problem understanding the change in pressure and velocity when a fluid flows down a tube of constant diameter. The way i see it; either the pressure changes with height and the velocity stays the same, or the velocity changes (increases) with the falling height and the pressure stays the same. It dosn't seem like it could be both (you need 2 eq. for 2 variables), but i could be wrong. Can someone point out the correct way to interpet Bernoulli's eq. for this arrangement, and maybe even tell me what i'm missing from my understanding. I'll check back here as soon as I get back from work tonight. Thanks in advance for the help!