Adistance of 1.0 meter separates the centers of
two small charged spheres. the spheres exert
gravitational force f
g and electrostatic force fe on
each other. if the distance between the spheres’
centers is increased to 3.0 meters, the
gravitational force and electrostatic force,
respectively, may be represented as
(1) (3) 3f
g and 3fe
(2) (4) 9fg and 9fe