evidence: Previously, we found that the speed of water in a hose increased from 1.96 m/s to 25.5 m/s going from the hose to the nozzle. Calculate the pressure in the hose, given that the absolute pressure in the nozzle is \(1.01 \times 10^5 \, N/m^2\) (atmospheric, as it must be) and assuming level, frictionless flow. [...] This absolute pressure in the hose is greater than in the nozzle, as expected since \(v\) is greater in the nozzle. The pressure \(P_2\) in the nozzle must be atmospheric since it emerges into the atmosphere without other changes in conditions.