An electron is at rest.

a. what is its charge and mass?

b. sketch the electric field due to the electron.

c. Consider a -2mC charge placed at point A 10 cm to the right of the electron, experiences a force of 1.44x10^-7N to the right.What is the magnitude and direction of the electric field at point A?

d. If the -2mC point charge has a mass of 1x10^-8kg and is released so that it is free to move from point A, what is its acceleration at that instant? Does the acceleration change or remain constant as it moves? Explain.