The hose right now is 2 in. (0.05 m) in diameter and the tank is 2 m high. I did some calculations to get the flow rate using the above equations, but I ended up with 6 m/s for velocity and 48 L/s for the flow rate, which is much higher rate than what I am actually experiencing. I am calculating the velocity as V2=√2rhogh,V2=2rhogh----√, and I derived this by assuming that h2=0, P1-P2=0,and V1=0, but it doesn't seem quite right. What could be the reason for the discrepancy between the calculated and actual flow rate?