Recent content by rsatchel

I thought it was maybe: k = 8.99E9 Nm^2/C^2

Homework Statement The ammonia molecule (NH3) has a dipole moment of 5.0×10−30C⋅m. Ammonia molecules in the gas phase are placed in a uniform electric field E⃗ with magnitude 1.3×106 N/C . Part A: What is the change in electric potential energy when the dipole moment of a molecule changes...

Thank you, that helped a lot!

Ok, so now there's another part What is the magnitude of the potential difference between the surfaces of the two shells? I thought I would need to use: V = ∫ E. dl = ∫ -(k q)/r dr (from A to B) V = (-k q) / r again, V = -k q( 1/B - 1/A) but what would the limits be? I thought maybe I...

Ah, OK. So I did q(net) = -3nC V = (k q)( 1/inf - 1/0.07) V = -(8.99E9 * -3E-9)(-1/0.007) = -385V

Homework Statement A thin spherical shell with radius R1 = 2.00 cm is concentric with a larger thin spherical shell with radius 6.00 cm . Both shells are made of insulating material. The smaller shell has charge q1=+6.00nC distributed uniformly over its surface, and the larger shell has charge...