Energy per unit weight

  • Thread starter hotjohn
  • Start date
  • #1
71
1

Homework Statement


why the author said the equation 3-4 as energy per unit weight ?
as gamma = rho g , gamma has the unit of kg(m^-3)(ms^-2) = kg(m^-2)(s^-2) , gamma is clearly not weight ...

Homework Equations




The Attempt at a Solution

 

Attachments

  • 0024.PNG
    0024.PNG
    12.8 KB · Views: 336

Answers and Replies

  • #2
Bystander
Science Advisor
Homework Helper
Gold Member
5,203
1,226
Beg your pardon?
 
  • #3
SteamKing
Staff Emeritus
Science Advisor
Homework Helper
12,796
1,670

Homework Statement


why the author said the equation 3-4 as energy per unit weight ?
as gamma = rho g , gamma has the unit of kg(m^-3)(ms^-2) = kg(m^-2)(s^-2) , gamma is clearly not weight ...

Homework Equations




The Attempt at a Solution

You'll have to supply some additional information about this equation 3-4, which is not included in your attachment.

The quantity γ = ρ ⋅ g is known as the weight density of the fluid, however.
 
  • #4
71
1

Homework Statement


why the author said the equation 3-4 as energy per unit weight ?
as gamma = rho g , gamma has the unit of kg(m^-3)(ms^-2) = kg(m^-2)(s^-2) , gamma is clearly not weight ...

Homework Equations




The Attempt at a Solution

 

Attachments

  • 0025.PNG
    0025.PNG
    13.8 KB · Views: 308
  • #5
71
1
You'll have to supply some additional information about this equation 3-4, which is not included in your attachment.

The quantity γ = ρ ⋅ g is known as the weight density of the fluid, however.
P / γ = height . right ? why is energy per unit weight ?
 
  • #6
SteamKing
Staff Emeritus
Science Advisor
Homework Helper
12,796
1,670
P / γ = height . right ? why is energy per unit weight ?
Work out the units on both sides of the equation.
 

Related Threads on Energy per unit weight

  • Last Post
Replies
5
Views
1K
  • Last Post
Replies
6
Views
929
  • Last Post
Replies
1
Views
8K
Replies
11
Views
2K
Replies
2
Views
3K
  • Last Post
Replies
1
Views
3K
  • Last Post
Replies
5
Views
8K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
4
Views
18K
Replies
3
Views
1K
Top