How does distance and size between objects affect invisible fields?

When the force acting on an object points at least partially in the direction of the motion the work done is considered to be negative

Which bonds are found inside a water molecule

An air-filled capacitor is formed from two long conducting cylindrical shells that are coaxial and have radii of 26 mm and 103 mm. the electric potential of the inner conductor with respect to the outer conductor is - 700 v (k = 1/4πε 0 = 8.99 × 109 n · m2/c2) the energy stored in a 1.0-m length of this capacitor is closest to