Sound travels through air as a wave. Consider the following diagram modelling how one person's speech travels to another person's ear. The purple dot represents an air molecule. The white

dots represent other air molecules.The purple dot oscillates left to right to left again. From its most left position, it takes the dot 0.002 seconds to reach its position furthest to the right. From this information, what can we determine about the wave? The distance between the purple dot's most left position and most right position is 0.004 m From this information, what can we determine about the wave?