Angular Momentum Conservation ।। কৌণিক ভরবেগের সংরক্ষন সুত্র ।। Non Major Physics 1

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Vaia ai niyome dele ki full marks pabo.boi ba gide e to onno niyome boro Kore dewya ase

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বইয়ে ত ছোট করেই লেখা

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@LeoMessi-we8te amar to boi nai.gide e dekhci boro

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