What is water vapour coming from the soil called

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.

Astudent pushes a 60-n block across the floor for a distance of 10 m. how much work was done to move the block

How many electrons does each element require in its valence shell to become stable?