• Support PF! Buy your school textbooks, materials and every day products Here!

Magnitude of buoyant and net force

  • Thread starter b0r33d
  • Start date
6
0
1. Homework Statement

An emtpy rubber balloon has a mass of 0.0120 kg. The balloon is filled with helium at 0 degrees Celcius, 1 atm pressure, and a density of 0.179 kg / m3. The filled balloon has a radius of 0.500 m.

A. What is the magnitude of the buoyant force acting on the balloon?

B. What is the magnitude of the net force acting on the balloon?

2. Homework Equations

Density of air = 1.29 kg/m3
Density of helium = 0.179 kg/m3
Net force = 0 = ((density of fluid x volume of fluid) - (density of object x volume of object))(9.81 m / s2)
Net force = Buoyant force - Weight of object

3. The Attempt at a Solution

I don't know what equation to use to find either force or what to do to get started.
 

Answers and Replies

Related Threads for: Magnitude of buoyant and net force

Replies
1
Views
4K
  • Last Post
Replies
1
Views
9K
  • Last Post
Replies
3
Views
4K
  • Last Post
Replies
1
Views
8K
  • Last Post
Replies
2
Views
10K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
2
Views
939
  • Last Post
Replies
3
Views
547
Top