https://padlet.com/monashca/xki5vockmjfot3vc ثاني عشر علمي/ تكنولوجي en-us 2020-11-17 05:14:54 UTC 2023-02-19 05:06:32 UTC hello@padlet.com monashca https://padlet.com/monashca/xki5vockmjfot3vc/wish/935854791 تتعرض كتلة لحركة تووافقية بسيطة سعتها 3cm وترددها 0.5Hz . تتساوى ازاحة الكتلة مع سعتها عند t=0 :
a) ما هي المعادلة التي تصف ازاحة الجسم ؟ 
b) ما هي المعادلة التي تصف سرعة هذه الحركة ؟ ]]> 2020-11-18 09:53:12 UTC https://padlet.com/monashca/xki5vockmjfot3vc/wish/935854791 monashca https://padlet.com/monashca/xki5vockmjfot3vc/wish/935892331 ما هي استطالة الحبل اذا سقط المتسلق سقوطاً حراً من ارتفاع 2m قبل ان يشد الحبل ؟( تذكري k= 1.4X10⁴N/m) وأن الكتلة( m= 90 kg)]]> 2020-11-18 10:05:21 UTC https://padlet.com/monashca/xki5vockmjfot3vc/wish/935892331 monashca https://padlet.com/monashca/xki5vockmjfot3vc/wish/935914339 تهتز كتلة 2kg بحركة توافقية بسيطة سعة اهتزازها 4cm وزمنها الدوري 3s . احسب : 

1. الطاقة الكلية للنظام ؟ 
2. حدد الطاقة الحركية للكتلة عندما تكون الازاحة 1cm .
3. انشئ رسماً بيانياً لعلاقة طاقة الوضع والطاقة الحركية والطاقة الكلية بالازاحة . 

]]> 2020-11-18 10:12:47 UTC https://padlet.com/monashca/xki5vockmjfot3vc/wish/935914339 monashca https://padlet.com/monashca/xki5vockmjfot3vc/wish/936016327 2020-11-18 10:46:35 UTC https://padlet.com/monashca/xki5vockmjfot3vc/wish/936016327 monashca https://padlet.com/monashca/xki5vockmjfot3vc/wish/936022925 جسم كتلته 2kg معلق بنابض مهتز 100N/m يخضع لحركة توافقية بسيطة . عند اللحظة  t=1s تكون إزاحة الكتلة  x=0.129 m  وسرعتها v=3.415 m/s
احسب : 

1. سعة الاهتزاز باستخدام قانون حفظ الطاقة .
2. احسب ازاحة الجسم وسرعته عند t=0 الجسم لم يبدأ من موضع الاتزان . 

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