Physics, 21.10.2021 08:30, AleciaCassidy

1 quả cầu đặc đường kính 8cm có khối lượng 0,25kg lăn không trượt trên một mặt phẳng nằm ngang với 1 vận tốc 4 vòng/s.Động năng quả cầu là

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1 quả cầu đặc đường kính 8cm có khối lượng 0,25kg lăn không trượt trên một mặt phẳng nằm ngang với 1...