Open Systems

[tinman]

Not enough information.  Move a mass through water in what direction?  Up?  Down (gravity) Left, right?  How fast?  How far? (time)  I think I understand what you might be getting at here but, you probably need to re-phrase your question a little.

(Please notice I did not ask what the temperature was outside, or how large the body of water was, or, if it was salt water, or day, or night.  So, I am not trying to be a smart ass.)

Bill

Lol-your starting to sound like MH and MarkE-->or is that the intention.
Regardless-it dosnt matter/up down/left ./right-->it's moving a mass against an enviroment that has friction. When you move a mass through water,you displace the same volume of water as the volume of the mass. If a mass is sinking,then the force being applied to that mass is gravity-gravity is doing the work here. If the mass is rising,then the buoyant force is doing the work.
If the mass rises to the surface,it would have taken energy to get it to the bottom of the body of water. If the mass sink's,then it will take energy to get it to the surface.

But to top it off,we can move in any direction you like,it really dosnt matter . We can go left/right/up/down-->loop de loops and all

[Pirate88179]

Brad:

Thank you for clarifying that.

I have no answer so I will sit back and await replies from those more knowledgeable than myself.

Bill

PS  Thank you for taking my question in the spirit in which it was intended.

[tinman]

Brad:

Thank you for clarifying that.

I have no answer so I will sit back and await replies from those more knowledgeable than myself.

Bill

PS  Thank you for taking my question in the spirit in which it was intended.

No prob

The answer is surprisingly  slow comming.
Maybe careful thought is being given to this,as they know what's comming?.
Could the truck driver actually be able to show an extra energy output without it effecting the already accounted for energy input
Whats this,energy from gravity and buoyancy without any apparent energy input:D

[MarkE]

OK-so we agree that we have accounted for all the energies within the electrolisis unit-correct?

You may find this a little !drag! MarkE,but piece by piece you are going to be the one that confirms this extra energy.
So in saying that,here is my next question.
Q-Dose it require energy to move a mass through a body of water?

You may think so.  You can play twenty questions all you want.  When it comes down to performing an energy balance you will need to articulate a reasonably complete description of your set-up, measurement methods, and measurement results.

Q-Dose it require energy to move a mass through a body of water?

It takes energy to move a volume of anything, including water through a body of water just due to rheology. 

[MarkE]

Lol-your starting to sound like MH and MarkE-->or is that the intention.
Regardless-it dosnt matter/up down/left ./right-->it's moving a mass against an enviroment that has friction. When you move a mass through water,you displace the same volume of water as the volume of the mass. If a mass is sinking,then the force being applied to that mass is gravity-gravity is doing the work here. If the mass is rising,then the buoyant force is doing the work.

The buoyant force is the force of gravity on the displaced volume of water.  The water if it can will sink into the volume occupied by the buoyant float.

If the mass rises to the surface,it would have taken energy to get it to the bottom of the body of water. If the mass sink's,then it will take energy to get it to the surface.

It takes work to increase the GPE of the system.  When an object is sunk an equivalent volume of water must be lifted out of the space that the object ends up occupying.  If the SG of the sunk object is less than that of the water it displaces, more mass moves up than moves down, requiring work.  If the SG is greater than the surrounding water, then the object sinks passively, releasing work.  Conversely, when a sunk object is lifted, a like volume of water falls into the space that the sunk object occupied.  If the SG is less than the surrounding water then the water sinks passively, releasing work as the object rises.  If the SG is greater than the surrounding water, then more mass moves up than down, and work must be done to lift the sunken object.

But to top it off,we can move in any direction you like,it really dosnt matter . We can go left/right/up/down-->loop de loops and all

If the SG is the same as the surrounding water then no GPE changes with any move.  But rheology will still take its toll.