two identical spheres of mass 1.okg each carry a charge of 1.0 C. in comparing the electric and gravitational forces between the spheres, it can be concluded that

a. Fe is greater than Fg
b. Fg is greater than Fe
c. the two forces are equal
d. the forces cannot be compared without knowing if the signs of the charges are the same or opposite
e. the forces cannot be compared without knowing the distance btween the spheres

a. Fe is greater than Fg