Bernoulli problems

  • Thread starter mujadeo
  • Start date
  • #1
103
0

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 im doing...
use bernoulli..

P2-P1 = (1/2pv^2)1 - (1/2pv^2)2

P2 - P1 = 634.934Pa
this is wrong.

please help ! thanks

Homework Statement





Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
1
0
Did you multiply by rho?
 

Related Threads on Bernoulli problems

  • Last Post
Replies
9
Views
726
  • Last Post
Replies
1
Views
502
  • Last Post
Replies
4
Views
3K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
0
Views
2K
  • Last Post
2
Replies
25
Views
2K
  • Last Post
Replies
1
Views
4K
  • Last Post
Replies
0
Views
2K
  • Last Post
Replies
3
Views
2K
Replies
0
Views
7K
Top