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. • It takes the purple dot 0.002 s to travel from its most left position to its most right position. The distance between the purple dot's most left position and most right position is 0.004 m • The distance between compression A and B is 1.4 meters. • It takes compression A 0.008 seconds to reach the ear 2.8 meters away. From this information, what is the wave's amplitude?meters From this information, what is the wave's period?seconds From this information, what is the wave's wavelength? :meters From this information, what is the wave's wave speed?meters / second