victorlee2
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Fluid problems - " pipe " like questions
A fireman climbs a 8 m high ladder carrying a
5 in diameter hose that has a 1.4 in diameter
nozzle. The pump has an absolute pressure of
4 atm.
What is the water velocity from the nozzle?
Assume that water is incompressible, its den-
sity is 1000 kg/m3 , and 1 inch = 0.0254 m.
The acceleration of gravity is 9.8 m/s2 and 1
atm = 1.01 × 105 Pa.
bernoulli's equation
volume rate of flow
ok so first i found the area by converting and doing pie and all that stuff. so after i found A1 and A2, i put A2/A1 which is = to v2/v1 so that means v1 = A2/A1 * v2. with this said its time to plug into bernoulli's equation. P1 + 1/2pv1^2 = P2 + 1/2pv2^2 + pgh.
P1 = given, just convert atm into Pa
v1 i plugged into equation
p = 1000 since its water
P2 = atmopheric pressure I am guessing
h = 8m
i plugged everything in but i got it wrong T_T
i only have 3 other questions besides this one so ill post them as a reply later.
Homework Statement
A fireman climbs a 8 m high ladder carrying a
5 in diameter hose that has a 1.4 in diameter
nozzle. The pump has an absolute pressure of
4 atm.
What is the water velocity from the nozzle?
Assume that water is incompressible, its den-
sity is 1000 kg/m3 , and 1 inch = 0.0254 m.
The acceleration of gravity is 9.8 m/s2 and 1
atm = 1.01 × 105 Pa.
Homework Equations
bernoulli's equation
volume rate of flow
The Attempt at a Solution
ok so first i found the area by converting and doing pie and all that stuff. so after i found A1 and A2, i put A2/A1 which is = to v2/v1 so that means v1 = A2/A1 * v2. with this said its time to plug into bernoulli's equation. P1 + 1/2pv1^2 = P2 + 1/2pv2^2 + pgh.
P1 = given, just convert atm into Pa
v1 i plugged into equation
p = 1000 since its water
P2 = atmopheric pressure I am guessing
h = 8m
i plugged everything in but i got it wrong T_T
i only have 3 other questions besides this one so ill post them as a reply later.