I need expert help to solve the given parts of following problem:
Problem: Electric charge is distributed along an infinite straight line with a density lambda = lambda0 / (|x| + k), where k is a positive constant.
Part A: Is the total charge infinite?
Part B: Can you calculate the potential (V) at a distance p from the wire at x = 0? If not, can you show that it is not infinite?
Please provide a full detailed explanation for the above problem.