a girl observes two parallel power lines that are of differing tension. The girl measures the tension and finds the first line has tension 5.00 x 102 N and the second line 3.00 x 102 N. Each line is 30.0 m long and has a mass per unit length of 0.030kg/m. Two transverse pulses are simultaneously generated on each line and travel towards each other. If the girl measures the time between the pulses transmission and when they intersect along the lines what would that time be?