Consider two positive charges Q1 and Q2 of the same magnitude 4 µC symmetrically placed on the x-axis at x = ± 2 cm. Consider a third positive charge Q3 of magnitude 8.5 µC and mass 8 g moving along the y-axis. Where applicable, let the potential energy be zero when charges are very far apart from each other.
a. What is the potential energy of Q3 when it is at y = 4.4 cm?
PEQ3 = J.
b. If Q3 is released from rest at y = 4.4 cm, how fast is it moving when it reaches y = 9.6 cm?
vQ3 = m/s.