Consider a positive charge Q1 of magnitude 8 C fixed at the origin with another positive charge Q2 of magnitude 1 C moving near it. Charge Q2 has a mass of 2 g. Where applicable, let the potential energy be zero when charges are very far apart from each other. Hint a. What is the potential energy of Q2 when it is 2.2 cm from Q1? PEQ2 3.27 J. b. If Q2 is released from rest at 2.2 cm from Q1, how fast is it moving when it reaches 9.2 cm from Q1 ? Hint for (b) VQ2 2.4874 m/s.