A small rubber wheel on the shaft of a bicycle generator presses against the bike tire and turns the coil of the generator at an angular speed that is 42 times as great as the angular speed of the tire itself. Every tire has a radius of 0.306 m. The coil consists of 129 turns, has an area of 3.53 10-3 m2, and rotates in a 0.0810-T magnetic field. The bicycle starts from rest and has an acceleration of +0.525 m/s2. What is the peak emf produced with the generator at the end of 5.39 s?