Physics, 29.07.2020 01:01 xxYingxYangxx7311
سفينة على سطح الماء ترسل اشارة صوتية عموديا الى قعر الماء تستلم هذه الاشارة بعد 4 ثواني فما هو عمق القعر اذا علمت ان سرعة الصوت في الماء هي 1500متر / ثانية
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سفينة على سطح الماء ترسل اشارة صوتية عموديا الى قعر الماء تستلم هذه الاشارة بعد 4 ثواني فما هو عمق ا...
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