Now the friends are ready to tackle a homework problem. A pulse is sent traveling along a rope under a tension of 27 N

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Now the friends are ready to tackle a homework problem.A pulse is sent traveling along a rope under a tension of 27 Nwhose mass per unit length abruptly changes, from 10 kg/m to 44kg/m. The length of the rope is 2.8 m for the first section and 2.7m for the second, and the second rope is rigidly fixed to awall.Two pulses will eventually be detected at the origin: the pulsethat was reflected from the medium discontinuity and the pulse thatwas originally transmitted, which hits the wall and is reflectedback and transmitted through the first rope. What is the timedifference, Δt, between the two pulses detected at theorigin?