The tank in the figure is at 1 atm; from which and through the pipe shown, gasoline flows at 20 ?C at a rate of 900 L/min. Calculate the pressure in kPa at point B; take into account the frictional pressure drop due to the length of the pipe, but ignore the others.

1.5 m Tubo de cobre de 4 pulg 7.5 m 12 m Flujo -- 70 m