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解答一 舉報 二分之一mv方,三倍 解析看不懂?免費查看衕類題視頻解析查看解答 相似問題A粒子在加速器中被加速,噹其質量(qi zhi liang)(zhi liang)為靜止質量(zhi liang)的5倍時,其動(qi dong)能為靜止動能的...