Solve the following question given below:
Question I: Four equal particles with positive charge q = 14.418x10-19 C and mass m = 81.99x10-31 kg are initially held at the four corners of a square of side L = 0.07 m. What is the total electric potential at the center of the square?
(in V)
Question II: If these particles are released simultaneously, what will be their speed when they have separated by a very large distance? You may neglect gravitational effects.
in (m/s)
Please show work and steps. Do not just copy paste from the internet. Thanks.