Find the energy lost of the system of a t-shirt cannon

Romanamarques
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Homework Statement
Find the energy lost of the system of a manually pumped T-shirt cannon (with a bike pump). Consider loss of energy to friction and loss of pressure.
Relevant Equations
mgh
1/2mv^2
PV = nRT
W = Fd
I don’t even know where to start. I especially don’t know how I would find the energy inside of the pump that would then be released to shoot a T-shirt.
 
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How is it that you have been given a homework problem that you don't even have any idea where to start on?

The rules of this forum are that you have to show some work on your own before we can give you any help.
 
Romanamarques said:
because it isn’t a homework. It’s a study being conducted by me.
So why did you post it in the homework section where everyone would assume it's homework, particularly since you did not say it wasn't?

But thanks for being so curt and rude anyway. I’ll ask others.
I think you must be accustomed to social media where it's OK to assume that any negative statement is an attack. Your interpretation of my statement is completely wrong. This is a science form and the rules are as I stated. Statements of fact on this forum should not be interpreted as an attack, just a statement of fact.

If you show no effort, you get no help. Well, actually, not everyone follows the rules so someone might jump in and help but you'd be better off showing some work.
 
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