I don't know, try it out. I've never stuck a spanner inside a compressed air cylinder and weighed it. Have a go and let me know.
Take a guess. You had no trouble guessing for weights in a vacuum.
Find out how much the certain spanner weighs, of your choice, then add it to the weight of the compressed air cylinder.
You don't half come out with some cack.
1 pound weight of wrench and the compressed air cylinder weighs 60 pounds. So at 3000psi inside, what is the new weight of the cylinder?
Is the cylinder 60 pounds with this 3000 psi inside of it and also the 1 pound wrench.
I don't know why you're using this wrench crap inside a cylinder.
And with that, denpressure is dead again. Personally I thought it died after my videos.
Denpressure is alive and kicking because it's the sole reason we are alive inside this Earth. A loop like you will not change that.
You have no clue what you're talking about, that's why you use a frigging wrench inside a compressed air cylinder, as if that changes anything when you can't get it into your head what denpressure is, clearly.
Once you understand it a little bit, get back to me, otherwise take off your little council boots, (the one's you shuffled along the floor with when you used your phone video) and just chill out in your little white ankle socks.
You cannot explain why objects under high pressure don't show a huge weight change. So, no, denpressure is not alive.
Oh I can. I just can't do it by putting a wrench inside a compressed air cylinder at 3000 psi, can you?
Here's a better way for you to try it.
Get a perspex box and place a set of scales inside it. Place an object on the scales. Something like a metal object or wooden or plastic and see what it weighs.
Now fit a square board or plastic in the top of the perspex box, making sure it's a real snug fit and push down on the lid. It will compress the air. Now see if the reading on the scale changes. This should give you your answer.
Go and try it, you appear to have the equipment at your college workshop.