Posted by **Hazel** on Thursday, May 9, 2013 at 4:00pm.

Sphere A, with a charge of +64 C, is positioned at the origin. A second sphere, B, with a charge of -16 C, is placed at +1.00 on the x-axis. Where must a third sphere, C, of charge +12 C, be placed so that there is no net force on it?

- Physics -
**Elena**, Thursday, May 9, 2013 at 5:49pm
F=0 if E = 0

The point is located to the right from the second charge at the distance ‘x’ =>

kq₁/(X+x)² =kq₂/x²

X=1

64/(1+x)² = 16/ x²,

3x²-2x-1 =0 ,

x={2±sqrt(4+12)}/6.

x₁=1, x₂=-1/3 (※)

Ans: Coordinate of the point is X+x =1+1 =2

## Answer This Question

## Related Questions

- physics - Consider a charge of +2.0 C placed at the origin of an X-Y co-...
- physics - A +5.7 C and a -3.5 C charge are placed 25 cm apart. ...
- physics - 1.) A small sphere of charge 2.4 μC experience a force of 0.36 N ...
- PHYSICS - Three small spheres are placed at fixed points along the x-axis, whose...
- PHYSICS - Three small spheres are placed at fixed points along the x-axis, whose...
- physics - Three charges sit on the vertices of an equilateral triangle, the side...
- physics - in an experiment using Coulomb's apparatus, a sphere with a charge of ...
- Physics - Sphere W (with an initial charge of zero) is touched to sphere A and ...
- physics - A small sphere with a charge of 2.40 is attached to a relaxed ...
- physics - Point X and Y are 30.0 mm and 58.0 mm away from a charge of +8.0 &#...

More Related Questions