field force have property to act at certain range of distance
it will act upto a certain range of distance
here we can say that the magnetic property that best describes the magnet's ability to act at a distance is given by
magnets have magnetic fields.
it is a class three lever with the fulcrum being the tip of the handle, the effort being applied on the center of the handle, and the load being on the tip of the bat end.
i would provide an explanation but i know you're in a hurry. the answer is c. lead or platinum only.
let the distance of pillar is "r" from one end of the slab
so here net torque must be balance with respect to pillar to be in balanced state
so here we will have
here we know that
mg = 19600 n
mg = 400,000 n
l = 20 m
from above equation we have
so pillar is at distance 10.098 m from one end of the slab