200分求一道数学题,懂英文的来,求神人教下过程A radioactive substance decays accrding to q(t)=q0e^-0.0063t where q0 is the initial amount of the substance ant t is the the in days.Find the half-life of the substance to the nearest ten

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200分求一道数学题,懂英文的来,求神人教下过程A radioactive substance decays accrding to q(t)=q0e^-0.0063t where q0 is the initial amount of the substance ant t is the the in days.Find the half-life of the substance to the nearest ten
200分求一道数学题,懂英文的来,求神人教下过程
A radioactive substance decays accrding to q(t)=q0e^-0.0063t where q0 is the initial amount of the substance ant t is the the in days.Find the half-life of the substance to the nearest tenth of a day

200分求一道数学题,懂英文的来,求神人教下过程A radioactive substance decays accrding to q(t)=q0e^-0.0063t where q0 is the initial amount of the substance ant t is the the in days.Find the half-life of the substance to the nearest ten
这么简单少年,原始衰减函数q0e^-0.0063t,题目说的意思就是要衰减到一半0.5q0所用的时间
也即由题目解方程
q0e^-0.0063t=0.5q0 求出时间t
t=(ln0.5)/-0.0063
解t=110.023362
取整就是110天
少年,有疑问继续探讨

直角坐标和极坐标转换直角坐标系中的点和原点的连线为r,该线与x轴正向夹角为θ (a)(r, θ) = (√2,5π/4)(b)(r, θ) =(2,7π/6

给我分,我告诉你
一个放射性物质衰变accrding利用外部程式(吨)=q0e^-0。0063t,q0是初步量的物质蚂蚁吨在days。find半衰期的物质最近第十的一天
。。。。。。

摘要根据放射性物质衰变问(t)= -0.0063 t ^ q0e q0是最初的地方一定数量的物质的蚂蚁t是在天。发现这种物质的半衰期最近的的一天

一个放射性物质衰变accrding利用外部程式(吨)=q0e^-0。0063t,q0是初步量的物质蚂蚁吨在days。find半衰期的物质最近第十的一天
翻译出来的

原始衰减函数q0e^-0.0063t,题目说的意思就是要衰减到一半0.5q0所用的时间
也即由题目解方程
q0e^-0.0063t=0.5q0 求出时间t
t=(ln0.5)/-0.0063
解t=110.023362
取整就是110天

求放射性物质的半衰期(放射性原子衰变至原来数量的一半所需的时间)这里求它最接近的天数。
根据方程q(t)=q0e^-0.0063t ,再由定义 q0e^-0.0063t = 1/2 q0 ,即 e^-0.0063t = 1/2 ,用科学计算器算下:
t = 110.02 最接近的就是110天。

200分求一道数学题,懂英文的来,求神人教下过程A radioactive substance decays accrding to q(t)=q0e^-0.0063t where q0 is the initial amount of the substance ant t is the the in days.Find the half-life of the substance to the nearest ten 200分求一道数学题,求懂英文,懂棒球规则的神人解答呀A baseball diamond has four bases (forming a square) that are 90 feet apart; the pitcher's mound is 60.5 feet from home plate.Approximate the distance from the pitcher's mound to 最后一道题,求神人 一道数学题.快开学了.一点头绪也没有.求神人解答. 200分求一道物理题 懂英文的神人 If sodium (Na),with an atomic weight of 23,combines with oxygen (O),with an atomic weight of 16,to from the compound Na2O,what is the ratio of the mass of sodium to oxygen that you would expect to react com 求神人解图求神人,传说级神人解图,求图中所有猫的名字. 求数学神人,数学神人.跪求高中数学特别厉害的数学神人,跪求,跪求. 求大神来啊啊,数学题一道 神人求解答 求神人做答 求神人对对答案 求神人回答 求神人.画图题. 计算,求神人 求数学神人解答 200分求一道数学题,懂英文的高手来呀A telephone company charges customers a certain amount for the first minute of a long distance call and another amount for each additional minute.A customer makes two calls to the same city—a 30-minu 200分求一道数学题,懂英文的来拉,图片应该会一会儿会上去Two points P and Q on level ground are on opposite sides of a building.To find the distance between the points,a surveyor chooses a point R that is a = 328 feet from P and c 求Backstreet Boys - All of Your Life (You Need Love) 的中文翻译 神人速来