الفيزياء - الحركة الاهتزازية والأمواج - الصف التاسع - المدرس عوني المسرّاوي

This lesson covers: Vibrational motion theory, period of vibration, frequency of vibration, wave theory, wave properties, wave classification, period and frequency problems, and wave problems. Contact number: 0932208575 My educational Telegram channel: https://t.me/AwnyMesserawi My personal Instagram page: https://www.instagram.com/awny_messer...