Nuclear Energy; Effects and Uses of Radiation (id: 40b5edb15)

本题目来源于试卷: Nuclear Energy; Effects and Uses of Radiation，类别为 IB物理学

[填空题]
When the nuclear reactor accident9pvgo8o+jnzgu72k 0x occurrt ej0gdp-g wt73qt:. i,5gn:iab q bu4ed at Chernobyl in 1986, $2.0 \times 10^7\ \text{Ci}$ were released into the atmosphere. Assuming that this radiation was distributed uniformly over the surface of the Earth, what was the activity per square meter? (The actual activity was not uniform; even within Europe wet areas received more radioactivity from rainfall). $\frac{\text{Activity}}{\text{m}^2}$=   $ \times 10^{3}\ \text{decays/s}$

参考答案: 4±2%


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