Compute all given parts of following problem:
Problem: An electric utility company supplies a customer's house from the main power lines (120 V) with two copper wires, each of which is 72.0 m long and has a resistance of 0.103 ohm per 300 m.
Part A: Find the potential difference at the customer's house for a load current of 118A.
Part B: For this load current, find the power delivered to the customer.
Part C: Find the rate at which internal energy is produced in the copper wires.
I want help to find the rate at which internal energy is produced in the copper wires.