edition 8. it is problem 6.48 water flows steadily up the vertical 1-in diameter pipe and out of the nozzle, which is 0.5-in in diameter, discharging to atmospheric pressure. the stream velocity at the nozzle exit must be 30 ft/s. calculate the minimum gage pressure required at section 1. if the device were inverted, what would be the required minimum pressure at section 1 to maintain the nozzle exit velocity at 30 ft/s?