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4. Fire hoses used by most fire departments have an inside diameter of about
6.50 cm. The hose carries a flow rate of 4.00 x 10-2 m³/s and starts at an
absolute pressure of 1.700 x 106 N/m². Assume that a firefighter carries the
hose up a ladder 18.0 m above the ground and the nozzle has an inside
diameter of 3.00 cm. What is the pressure at the tip of the nozzle due to the
Bernoulli effect, assuming negligible resistance? (Density of water is 1000 kg/m)

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