Which factors affect the strength of electric force between two charged objects

-- The product of the charges on the two objects (including their signs).  (Not whether they're equal, or a big one and a little one.  Only their PRODUCT.)

-- The distance between their centers.

-- What's in the space between them.

0.3x0.21x0.08kg=mass 1 sheet

mass 500 = 500xmass 1

volume pile = 0.3x0.2x0.048

density=mass/volume= 500xmass 1/0.3x0.2x0.048

v patient student

answer: cesare beccaria developed the classical school of criminology with from philosopher jeremy bentham

explanation: