2). An electron is released a short distance above Earth's surface. A second electron directly below it exerts an electrostatic force on the first electron just great enough to cancel the gravitational force on it. How far below the first electron is the second? The value of Coulomb's constant is 8.98755 × 10^9 N·m^2/C^2 and the acceleration of gravity is 9.81 m/s^2.