=Two springs of different mass densities are fastened end-to-end. Two students, Pat and Chris, are holding the opposite ends of the springs. ONE student creates a pulse so that, after a short time, the system has the following shape. Pat Chris ....... a. Which spring, left or right, is under the greater tension? Explain your reasoning. b. Which spring, left or right, has the greater linear mass density? Explain your reasoning c. Did Pat or Chris create the initial pulse? Explain your reasoning carefully. d. Sketch thé shape of the springs just after the initial pulse was created.

=Two springs of different mass densities are fastened end-to-end. Two students, Pat and Chris, are holding the opposite ends of the springs. ONE student creates a pulse so that, after a short time, the system has the following shape. Pat Chris ....... a. Which spring, left or right, is under the greater tension? Explain your reasoning. b. Which spring, left or right, has the greater linear mass density? Explain your reasoning c. Did Pat or Chris create the initial pulse? Explain your reasoning carefully. d. Sketch thé shape of the springs just after the initial pulse was created.