بالعلم ترتقى الامم

بوسى
منذ 7 سنوات
اجابة  0   مشاهدة  9

اذا اثرت قوة متغيرة ق ( مقاسة بالنيوتن ) على جسيم حيث ق تعطى بالعلاقة ق = 4 ف3 فان 

الشغل المبذول من هذه القوة فى الفترة من ف = 0 الى ف = 2 متر يساوى ................................

ا- 16 ارج

ب- 16 جول 

ج- 32 ارج

د- 32 جول 

...........................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...........................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

بوسى
منذ 7 سنوات
اجابة  0   مشاهدة  6

جسيم يتحرك فى خط مستقيم  بحيث كانت عجلته  جـ تعطى كدالة فى الزمن  بالعلاقة جـ = 2 ن - 6

حيث جـ مقاسة م / ث2 , الزمن ن بالثانية  فان كان التغير فى كمية حركة الجسيم خلال الفترة 

3\leن\le5\     يساوى 32 كجم م/ث فاحسب كتلة الجسم 

 

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

بوسى
منذ 7 سنوات
اجابة  0   مشاهدة  6

اذا كان ع = 3 ن2 - 2 ن  فان من خلال الفترة [ 0 , 2 ] تساوى ............... وحدة طول 

ا- 1

ب- 2

ج- 4

د- 10

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

بوسى
منذ 7 سنوات
اجابة  0   مشاهدة  5

جسيم يتحرك فى خط مستقيم بحيث كانت ف = 3 هـن+2 فان سرعته الابتدائية تساوى ..............................

ا- 3

ب- هــ

ج- هـ2

د- 6هـ2

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

...............................................................................................................................

 

Esraa
منذ 7 سنوات
اجابة  1   مشاهدة  139
جمله ليستنبط من انواع افادت .. ؟؟ ا/ التوكيد ب/ التنويع ج/ التعليل ء/ الترجيح
بوسى
منذ 7 سنوات
اجابة  0   مشاهدة  5

يلاقى كتلته 300 جم موضوع على ارتفاع  10 امتار من سطح الارض

اوجد طاقة وضع الجسم واذا سقط الجسم راسيا فاوجد طاقة حركته عندما

يكون على ارتفاع 3 امتار من سطح الارض 

 

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

بوسى
منذ 7 سنوات
اجابة  0   مشاهدة  5

مستوى مائل خشن  طوله 20 مترا ورتفاعه 5 امتار اوجد اصغر سرعة يقذف

بها جسم من اسفل نقطة فى المستوى المائل وفى اتجاه خط اكبر ميل 

للمستوى لكى يصل بالكاد الى اعلى نقطة فى المستوى علما بان الجسم

يلاقى مقومات  تساوى   \frac{1}{4}  وزنه 

 

 

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

بوسى
منذ 7 سنوات
اجابة  0   مشاهدة  5

قطر قدرة الته 504 حصان وكتلته 216 طنا يتحرك على طريق افقى باقصى 

سرعة له ضد مقاومات تعادل 5 ث كجم لكل طن من الكتلة اوجد اقصى سرعة 

له بالكم / س 

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

بوسى
منذ 7 سنوات
اجابة  0   مشاهدة  6

عربة ترام ساكنة شدت بحبل يصنع مع شريط الترام زاوية قياسها 60°

فاذا كانت قوة الشد 500 ث . كجم وتحركت العربة بعجلة 5 سم / ث2 لمدة 30 ث

احسب الشغل الذى بذلته قوة الشد بالجول

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

..........................................................................................................................................

بوسى
منذ 7 سنوات
اجابة  0   مشاهدة  5

اذا كانت قدرة الة عند اى زمن ن مقاسا بالثانية تساوى 9ن2+ 4 ن وحدة

قدرة  فان  الشغل المبذور من الالةخلال الثانية الرابعة يساوى  ..... وحدة شغل . 

ا - 125 

ب - 67 

ج - 224 

د - 99