A point charge 4.80 μC is held fixed at the origin. Asecond point charge 1.40 μC with mass of2.80×10−4 kg is placed on the x axis, 0.260 mfrom the origin.
Part A: What is the electric potential energy U of thepair of charges? (Take U to be zero when the charges haveinfinite separation.) (Answer in Joules)
Part B: The second point charge is released from rest. What is itsspeed when its distance from the origin is 0.500 m . (Answer inm/s)
Part C: What is its speed when its distance from the origin is5.00m. (Answer in m/s).
Part D: What is its speed when its distance from the origin is50.0m. (Answer in m/s).
