Water flows through a water hose at a rate of V1 = 780 cm³/s, the diameter of the hose

Water flows through a water hose at a rate of V1 = 780 cm³/s, the diameter of the hose is d1 = 2.27 cm. A nozzle is attached to the water hose. The water leaves the nozzle at a velocity of v2 = 14.4 m/s.

Randomized Variables
V1 = 780 cm³/s
d1 = 2.27 cm
v2 = 14.4 m/s