Two wires are parallel and one is directly above the other. Each has a length of 50 meter and a mass per unit length of 0.020 kg/m. However, the tension in the wire A is 5.90 x 102 Newton, and the tension in the wire B is 2.80 x 102 Newton. Transverse wave pulses are generated simultaneously, one at the left end of wire A and one at the right end of wire B. The pulses travel toward each other. Find how much time does it take until the pulses pass each other?