Two identical conducting small spheres are placed with their centers 0.220 m apart. One is given a charge of 12.0 nC and the other a charge of 16.0 nC. (a) Find the electric force exerted by one sphere on the other. magnitude N direction (b) The spheres are connected by a conducting wire. Find the electric force each exerts on the other after they have come to equilibrium. magnitude N direction

Explanation:

Force between two charges can be calculated with the help of following expression

F = kq₁q₂ / r² where F is force between charges  q₁ and q₂ and r is distance between the two. k is a constant .

F = 9 x 10⁹ x 12 x 10⁻⁹ x 16  x 10⁻⁹ / .22²

= 35702.47 x 10⁻⁹ N . The force will be directed away from the other charge ie it will be repulsive.

b) When the spheres are connected , charge will be equally distributed on them .

charge on each of them = (12 + 16) / 2 x 10⁻⁹

= 14 x 10⁻⁹ C

force = 9 x 10⁹ x (14 x 10⁻⁹)² / .22²

= 36446.28  x 10⁻⁹ N .

electrical to thermal

depends on what you mean by "group." for order, it would be coleoptera (beetles). for class, it would be insecta (insects). for phylum, it would be the arthropoda (animals with jointed exoskeletons).

explanation: