The refueling planes were able to air-transfer a total of 687 gallons of fuel to the plane in 9 refueling transfers. assume that the refueling nozzle had a diameter of 1.45 inches and each refueling took 2.41 minutes to perform. calculate the velocity of the fuel through the nozzle. assume that the fuel filled the entire cross-sectional area of the nozzle.

the velocity of the fuel through the nozzle v= 6.45 ft/s

Explanation:

Given values

Volume =  687 gallons=

9 refueling transfers

dia of nozzle d= 1.45 inches

each refueling took 2.41 minutes to perform. t= 2.41×60×9= 1247.4 sec

Volume of fuel pumped in time t is give by

V= Avt

A= area of mouth of pipe

v= flow rate

t= time

A= πr^2

A=

now substituting the values in equation 1 we get

v= 1.966 m/sec

v= 6.45 ft/s

the velocity of the fuel through the nozzle v= 6.45 ft/s

c)as speed changes, wavelength and frequency change.

everything changes!

massxgravity x heght=weightxheight= pe

4900=490xh

h=10