Knowledge is power ,
sharing knowledge is powerful
إذا وضع جسم على مستوى مائل خشن يميل على الأفقي بزاوية قياسها هـ وكان على وشك
الانزلاق وقياس زاوية الاحتكاك هي ل فإن :
ا- هـ > ل
ب- هـ= ل
ج- هـ < ل
د- هـ = 2 ل
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اضف اجابتك
- اللغة العربية
- اللغة الأجنبية الأولى (اللغة الإنجليزية)
- الجغرافيا
- فيزياء
- الاحياء
- الاحصاء
- التفاضل والتكامل
- الجبر والهندسة الفراغية
- الديناميكا
- علم النفس والاجتماع
- الفلسفة والمنطق
- اقتصاد
- التاريخ
- التربية الوطنية
- الجولوجيا وعلوم البيئة
- الكيمياء
- اللغة الاجنبية الثانية (اللغة الفرنسية)
- الميكانيكا
- دين اسلامى