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
2019-05-07
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
优质解答
x = 15te^-2.3m
x = 15te^-2.3m