Two 2 . 0 ???? ???? masses are 1 . 0 ???? apart on a frictionless table. Each has 1 . 0 ???? of charge.

Two $2\mathrm{.}0\mathrm{????}\mathrm{????}$ masses are $1\mathrm{.}0\mathrm{????}$ apart on a frictionless table. Each has $1\mathrm{.}0\mathrm{ \mu ????}$ of charge.

a. What is the magnitude of the electric force on one of the masses? Express your answer in newtons.

b. What is the initial acceleration of each mass if they are released and allowed to move. Express your answer in meters per second squared.