Derive an expression for the curvature drift velocity of the particles' guiding centers in a dipole field. use this equation to calculate the curvature drift of 0o pitch-angle auroral 1 kev protons on the dipole line of force whose equatorial crossing distance is 6 re.
this is all the information given in the question, answer as best you can

c. magnitude and direction

the order for strong to weak forces such as

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

the fundamental forces are those forces that act between to objects or element to make interactions. there are four types of fundamental forces such as strong and weak nuclear forces (due to protons and electrons), electromagnetic force (due to the motion of electrons) and gravitational force (due to orbital movement of the planet). if these forces are arranged on the basis of their maximum strength then the order is

strong nuclear force → electromegnetic force → weak nuclear force → gravitational force

at right angles to each other