A class of students is modeling how waves propagate through a medium. Each student in the class represents particle in the medium. An envelope represents the energy transferred by the wave. Which of the following scenarios would accurately model a wave propagating from one side of the room to the other?

C: "The students pass the envelope from one student to the next until it travels across the room."

To quote ck12, "The particles of the medium just vibrate in place. As they vibrate, they pass the energy of the disturbance to the particles next to them, which pass the energy to the particles next to them, and so on."

there are no atoms

ingenuity says that the answer is 2.7 m.