mujadeo
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Homework Statement
A long horizontal hose of diameter 3.8 cm is connected to a faucet. At the other end, there is a nozzle of diameter 1.8 cm. Water squirts from the nozzle at velocity 38 m/sec. Assume that the water has no viscosity or other form of energy dissipation.
a) What is the velocity of the water in the hose ?
this is no prob
A1V1 = A2V2
8.61m/s OK
b) What is the pressure differential between the water in the hose and water in the nozzle ?
i am stuck on this one.
Homework Equations
The Attempt at a Solution
heres what I am doing...
use bernoulli..
P2-P1 = (1/2pv^2)1 - (1/2pv^2)2
P2 - P1 = 634.934Pa
this is wrong.
please help ! thanks