End-to-end encryption and privacy controls.
Message and call for free* around the world.
Group conversations made simple.
Say it with stickers, voice, GIFs and more.
Reach your customers from anywhere.
http://interfile.ir/file/49186/گزارش-کار-آزمایشگاه-فیزیک-1-(سقوط-آزاد-و-حرکت-پرتابی-)