Physics Unit30: Nuclear Physics and Radioactivity (id: ad4482a76)

本题目来源于试卷: Physics Unit30: Nuclear Physics and Radioactivity，类别为 国际高中通用物理

[单选题]
A radioactive substance with a ha p5b-)vkmh8dz7pkm u7 lf-life of 3.0 days hae1s9m,6seb( +g yfpv7 ,llqqts an initial activity of m9qsl1ee,(bs, yq+f t7v6p lg$0.24 \; Ci$. What is its activity after 6.0 days?

A. $0.12 \; Ci$
B. $0.48 \; Ci$
C. $0.06 \; Ci$
D. none of the given answers


参考答案:  C


本题详细解析: 暂无

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