Recent content by cnd4747

Thanks for all your help!

I have the stress and strain of the material, along with Young's Modulus and Poisson's ratio. Can I find it based on that? Overfilling them was actually part of my experiment, that's how I found the rupture radius and volume, young's modulus, etc.

Or could I do (P1V1)/T1 = (P2V2)/T2. I have both the final pressure and the final radius, from which I could get the final volume, and then solve for T2? What I think I'm going to do is imagine I have a balloon with the minimum size to float and then put it in the equation up there solving for...

Thank you Cutter. So if it's dependent on volume then do I even need the pressure it blows up at then? Even though it's less likely, I think I'll base it off pressure since that's what I've been basing it on anyways. How do I solve for pressure difference in the sense you are talking about...

I think what I'm going to do is this: the minimum amount for a balloon to float is density of air * volume - density of helium * volume - mass of balloon, and if that's <0 it will float. From there I'll find p1 at that volume and plug it into p1v1=p2v2 to get an idea of the volume at the point...

I'm not sure I understand what you mean, Bystander. To be totally honest, I'm not extremely familiar with thermodynamics. I'm just not sure which equation to use? would I use (p1v1)/(p2v2) = (n1T1/n2T2)? The problem is that I'm not really sure where to start

Hi, I am doing a project for school where I am calculating at what height a balloon would pop from pressure while rising. At the point I am now, I have the initial pressure and the pressure it would pop at. I know work = pressure * change in volume, and that at some point I will need to use the...

Unfortunately it is part of a paper I am writing for my class and I think if I shared it online it would discredit me and make it look like I just copied it from online rather than actually figuring it out myself. As a second question, though, would it make any difference in the stretch...

Thanks for the answers and sorry it took me so long to get back to you. I figured out how he derived the rest of the equation on my own

Hi, I would like to do an experiment for my physics class about which balloon has the highest stretch ratio and found the following page on this forum: https://www.physicsforums.com/threads/hookes-law-for-a-balloon.670566/ First of all, can you please explain this function? σ=σ(λ). I'm...

Hi, I'd like to introduce myself. I am cnd4747, a student in high school physics currently hoping to become an engineer.