At what speed is the water in the hose moving?

  • Thread starter Jtappan
  • Start date
  • #1
96
0

Homework Statement



A nozzle of inner radius 1.03 mm is connected to a hose of inner radius 7.97 mm. The nozzle shoots out water moving at 25.5 m/s.
(a) At what speed is the water in the hose moving?
42.589 cm/s
(b) What is the volume flow rate?
84.989 cm3/s
(c) What is the mass flow rate?
_____g/s

Homework Equations





The Attempt at a Solution



I have found the speed of the water and the volume flow rate. I do not know how to find the mass flow rate though. Can anyone help me?
 

Answers and Replies

  • #2
Dick
Science Advisor
Homework Helper
26,263
619
Mass flow rate and volume flow rate are connected by the density of water, right? Since that is mass/volume.
 
  • #3
105
0
Part of Bernoulli's Principle is that the mass that leaves the pipe, must be the same as the mass that enters the pipe.
 
  • #4
96
0
I am still confused on how to find this though. do i just multiply by Rho of water?
 
  • #5
96
0
I cant get this one either...i know they are connected by the density but i dont know what to do with the density
 
  • #6
stewartcs
Science Advisor
2,177
3
Mass flow rate = Volumetric flow rate times the fluid's density.

Volumetric flow rate = fluid velocity times the cross-sectional area.
 
  • #7
96
0
ahh i just was not converting right thanks for the help!
 

Related Threads on At what speed is the water in the hose moving?

  • Last Post
Replies
7
Views
1K
Replies
3
Views
7K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
15
Views
7K
  • Last Post
Replies
3
Views
819
Replies
6
Views
2K
L
Replies
4
Views
3K
Replies
5
Views
2K
Replies
8
Views
3K
Replies
2
Views
2K
Top