Neutrons emerge from a plane surface into a vacuum with an angular flow rate proportional to the square of the cosine of the angle with respect to an outward normal fi to the surface. let j, n be the net flow rate at the surface. what is the total (not angular) flux density in terms of jn?

Kiloleter, mega leterhope this !

Answervery cold;

In atoms, the electron carries a negative elementary or unit charge; the proton carries a positive charge. the two types of charge are equal and opposite. in an atom of matter, an electrical charge occurs whenever the number of protons in the nucleus differs from the number of electrons surrounding that nucleus.

Answervery high orbital velocities in a very compact region;