Solve the all parts of given problem:
Problem: A 9.0-cm-long wire is pulled along a U-shaped conducting rail in a perpendicular magnetic field. The total resistance of the wire and rail is 0.33 ohms. Pulling the wire with a force of 1.1 N causes 4.1 W of power to be dissipated in the circuit.
Part I: What is the speed of the wire when pulled with 1.1N?
Part II: What is the strength of the magnetic field?
I need expert help to solve the above problem.