Helium-filled balloon tied to mass

  • Thread starter Thread starter Linus Pauling
  • Start date Start date
  • Tags Tags
    Balloon Mass
Click For Summary

Homework Help Overview

The discussion revolves around a physics problem involving a helium-filled balloon and the maximum mass that can be tied to it without causing it to sink. The subject area includes concepts of buoyancy and forces acting on objects in fluids.

Discussion Character

  • Exploratory, Conceptual clarification, Assumption checking

Approaches and Questions Raised

  • Participants explore the relationship between buoyant force and the weight of the mass tied to the balloon. There are attempts to apply formulas related to force and pressure, as well as questions about the validity of the approach taken.

Discussion Status

The discussion includes a mix of attempts to solve the problem and questions about the correctness of the methods used. Some participants express uncertainty about their calculations, while others seek clarification on fundamental concepts like buoyant force.

Contextual Notes

There is an assumption regarding the pressure conditions and the dimensions of the balloon, which may affect the calculations. The original poster's approach raises questions about the application of physics principles in this context.

Linus Pauling
Messages
187
Reaction score
0
1. A 1.10 balloon is filled with helium gas until it becomes a 24.0 -diameter sphere. What maximum mass can be tied to the balloon (with a massless string) without the balloon sinking to the floor? (in grams)



2. F = ma
pA = p*pi*r^2



3. radius = 0.12m

F_air = p*pi*r^2 = 4583N, assuming 1atm pressure i.e. 101,300Pa

F_air = mg

m= F_air / g = 467000 grams
 
Physics news on Phys.org
I assume this is the wrong approach?
 
Nevermind, I got it.
 
What's Archimedes' buoyant force?
 

Similar threads

What helium mass in a balloon to make it bouyant in air?
  • · Replies 12 ·
Replies
12
Views
2K
Fill Balloons Homework: Max # People for Bday Party Balloon
  • · Replies 4 ·
Replies
4
Views
5K
How high will a helium balloon rise?
  • · Replies 10 ·
Replies
10
Views
4K
Can a Helium-Filled Weather Balloon Accelerate Upwards Faster Than Gravity?
  • · Replies 2 ·
Replies
2
Views
2K
Pressure of Helium inside a balloon floating in air
  • · Replies 2 ·
Replies
2
Views
3K
How Large Must a Helium Balloon Be to Achieve Neutral Buoyancy?
  • · Replies 3 ·
Replies
3
Views
4K
How to Calculate the Height a Helium Balloon Ascends Using Mass and Density
  • · Replies 12 ·
Replies
12
Views
2K
Moles of gas helium balloon; buoyancy; PV=nRT
  • · Replies 3 ·
Replies
3
Views
8K
Problem Set Involving Inertia and Balloons
  • · Replies 2 ·
Replies
2
Views
2K
How Do You Calculate the Buoyant Force of a Helium Balloon?
  • · Replies 1 ·
Replies
1
Views
10K