Sound wave
The level of the sound intensity changes from one person to another .
by Heba Soffar · Published · Updated
The level of the sound intensity changes from one person to another .
by Heba Soffar · Published April 29, 2018 · Last modified September 3, 2019
by Heba Soffar · Published April 17, 2016 · Last modified October 17, 2019
by Heba Soffar · Published October 25, 2015 · Last modified October 28, 2020
