世上最无语的物理题~根本就是数学题么An electron moving along the x axis has a position given by x = 15te^-2.3m, where t is in seconds. How far is the electron from the origin when it momentarily stops?知道就是对此公式求导,

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世上最无语的物理题~根本就是数学题么An electron moving along the x axis has a position given by x = 15te^-2.3m, where t is in seconds. How far is the electron from the origin when it momentarily stops?知道就是对此公式求导,
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世上最无语的物理题~根本就是数学题么An electron moving along the x axis has a position given by x = 15te^-2.3m, where t is in seconds. How far is the electron from the origin when it momentarily stops?知道就是对此公式求导,
世上最无语的物理题~根本就是数学题么
An electron moving along the x axis has a position given by x = 15te^-2.3m, where t is in seconds. How far is the electron from the origin when it momentarily stops?知道就是对此公式求导,平且让其等于0,求x,可是不知道怎么解,求真相帝~多谢

世上最无语的物理题~根本就是数学题么An electron moving along the x axis has a position given by x = 15te^-2.3m, where t is in seconds. How far is the electron from the origin when it momentarily stops?知道就是对此公式求导,
x = 15te^-2.3m

世上最无语的物理题~根本就是数学题么An electron moving along the x axis has a position given by x = 15te^-2.3m, where t is in seconds. How far is the electron from the origin when it momentarily stops?知道就是对此公式求导, 外星人的是否存在?世上根本没有 世上最难的数学题 来道世上最难的数学题 世上最有趣、牛的数学题 世上真有不离不弃的爱情么? 信不信由你,这世上根本没有鬼.的英文怎么写 世上根本不存在正义,正义只是借口? 世上有两性人吗?就是有两种生殖器官的 人活在這世上就是來受罪的嗎? 世上绝对的事》就是地球每天在动》》》》》 为什么说唯物主义的根本就是唯心主义? 人和动物最根本的区别就是? 物理题就是热机的问题求详解 请问世上真的有神仙吗,我是个无神论者,但有些事用科学根本无法解释? 初三数学题,物理题,化学题 世上真的有先知么? 奶奶的,这方面的题我一道都不会,看答案也看不懂,现在看到物理题就头疼,知道F合＝F向,但就是不会做,根本不会分析.操,怎么办啊