结果1 题目 The number of parent nuclei in a sample of a radioactive element is N at time r.The radioactive element has a half-life2The rate of decay is proportional to A A N Bt○C1/x D:3○ 相关知识点: 试题来源: 解析 A 反馈 收藏 ...
doi:US4991450 AUlrich SchaarschmidtWolfgang HautUSUS4991450 * 1989年6月21日 1991年2月12日 Deutsche Gesellschaft Fur Wiederaufarbeitung Von Kernbrennstoffen Mbh Filling arrangement for taking a sample of a radioactive process solution
A200mg sample of a radioactive substance is observed as it decays. The table shows the mass remaining at various times. Assuming an exponential decay model, use least square to find the half-life of the substance.(See Section6.7.R...
[Also in Group XVIII] A sample of radio-active liquid is obtained by operating a vacuum lift to flush about 300 c.c. of the liquid from a pipe 65 to a pipe 66 via a reservoir 67 and then advancing a rubber-capped evacuated bottle 74 on to a hypodermic-type needle 62 in ...
The mass of a radioactive substance follows a continuous exponential decay model. A sample of this radioactive substance has an initial mass of1428kgand decreases continuously at a relative rate of15%per day. Find the mass of the sample a...
The half-life of a radioactive substance is the interval in which a sample of the substance is reduced to half of its original mass. Let the initial mass of a sample of a radioactive substance be m0. Let the half-life of ...
<p>To solve the problem, we need to determine the half-life of a radioactive sample given that its activity drops to one-third of its initial value in 80 minutes. We can use the relationship between activity, time, and half-life in radioactive decay.</p>
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The half-life of a radioactive sample isT. If the activities of the sample at timet1andt2(t1<t2)andR1andR2respectively, then the number of atoms disintergrated in timet2−t1is proportional to View Solution The rate of decay of a radioactive sampel is given byR1at timet1andR2at a lat...