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

Two Hanging Spheres

  • Thread starter Bryon
  • Start date
  • #1
99
0

Homework Statement


Two tiny conducting spheres with a mass of 14 gm each are hanging from non-conducting threads of length 60 cm such that they are 6 cm apart. What is the electrical force between the spheres?


Homework Equations



f = m*g*tan(theta)

The Attempt at a Solution



0.6^2 - 0.03^2 = length y = 0.599249531

theta = tan^-1(0.03/0.599249531) = 2.865983 degrees

F = 14*9.81*2.865983 = 393.6142N

Which does not seem right to me. I think I messed up the angles but no entirely sure.
 

Answers and Replies

  • #2
99
0
I got it nevermind!
 

Related Threads for: Two Hanging Spheres

  • Last Post
Replies
7
Views
21K
Replies
7
Views
8K
  • Last Post
Replies
2
Views
1K
  • Last Post
Replies
5
Views
8K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
5
Views
33K
  • Last Post
Replies
10
Views
911
  • Last Post
Replies
16
Views
3K
Top