Understanding Energy per Unit Weight: Solving the Equation for Height

[hotjohn]

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

 

[Bystander]

Beg your pardon?

 

[SteamKing]

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.

 

[hotjohn]

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

 

[hotjohn]

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 ?

 

[SteamKing]

P / γ = height . right ? why is energy per unit weight ?

Work out the units on both sides of the equation.