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14- لماذا تسمع الرعد بعد ظهور البرق، مع حدوثهما في آن واحد؟

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Question added by rawaa jridiaa , استاذة , مدرسة خاصة
Date Posted: 2015/08/19
yassine aabid
by yassine aabid , Responsable D'equipe , maroc thermo

لان سرعة الضوء اسرع من سرعة الصوت

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