مشاهدة النسخة كاملة : مسالة ارشميدس هامة ياريت الحل


مينا جمال داود
21-05-2013, 01:35 AM
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مينا جمال داود
21-05-2013, 01:37 AM
انا اسف المسالة بتقول
غواصة حجمها 1000 متر مكعب تطفو فوق ماء عذب بحيث يكون برجها مغمور تحت الماء ثم انتقلت الى ماء مالح كثافته 1030 والعذب 1000 احسب قوة الدفع فى الحالتين

x_moor
09-06-2013, 09:47 AM
لازم تقول ايه اللى حصل للغواصة فى الماء المالح

كثافة السائل ( البحر ) فى حجم الجزء المغمور = كثافة مادة السفينة فى حجمها الكلى
كثافة السائل ( النهر ) فى حجم الجزء المغمور = كثافة مادة السفينة فى حجمها الكلى
اذن كثافة السائل ( البحر ) فى حجم الجزء المغمور = كثافة السائل ( النهر ) فى حجم الجزء المغمور