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Class 13 | পদার্থবিজ্ঞান ১ম পত্রঃঅধ্যায়-৪-নিউটনীয় বলবিদ্যা: জড়তার ভ্রামকের ও কৌণিক ভরবেগ এর বিভিন্ন ম্যাথ

HRI Team

31 May, 2022

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