Is it possible to have a weak acid or base?

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

Why does lightning travel from clouds to the ground?

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge