{If Consult an insmrcror before you proceed. E. Now let's think about what controls the response time. First, imagine the e'ect of changing the ntassless springs. 1. Suppose each of the massless springs in the model were suddenly made stiffer {harder to stretch}. Would the increased sti'ness increase or decrease the response time? Why? 2. So, would stiffening the massless springs increase or decrease the pulse speed? 3. How does the answer you just gave compare with your reasoning in section IL part A above {back on page 2}? Explain. C. Now let"s think about hon.r the masses in our model a'eot the response time and pulse speed. Suppose each of the masses were made biggerI but the massless springs were le unchanged. 1. Would this inorease or decrease the response timeI or would. the response time be unaffected? Explain. 2. So... would increasing those masses make the pulse travel faster or slower? 3. Does the answer you just gave mesh with your reasoning in section II {page 2] above? W. Using that mechanism to gure out deeper explanations Using the mechanism of wave pulse propagation you just spelled out, you can [i] deepen your understanding of why the pulse speed depends on tension and on linear mass density, and {ii} explain why a faster iok doesn't produce a faster pulse. A. To think about the speed of that wave pulse, let's dene the response time as the time it takes mass 3 to reach its peak (highest point} eer mass 2 has reached its peak. In other words, it's the time that passes between when mass 2 reaches its peak and when mass 3 reaehes its peak. 1. Is the response time [as just def'med} greater thanI less than. or equal to the time that passes between when mass 3 reaehes its peak and when mass 4 reaches its peak? Explain. 2. Based on your answers aboyeI explain how thinking about the response time lets us figure out what controls the pulse speed. Specically, would decreasing the response time make the wave pulse travel faster or slower {or would it make no differenee}?r Explain