in 1923, the united states army (there was no united states air force at that time) set a record for in-flight refueling of airplanes. using two refueling planes, an airco dh-4b biplane was able to remain in flight for 37 h37 h . during the flight, the refueling planes were able to air-transfer a total of 687687 gallons of fuel to the plane in 99 refueling transfers. assume that the refueling nozzle had a diameter of 1.75 in1.75 in and each refueling took 2.41 min 2.41 min to perform. calculate the velocity of the fuel through the nozzle. assume that the fuel filled the entire cross-sectional area of the nozzle.
