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Safe Handling of Radioactive Sources It is very well known that radioactive sources are dangerous if handled improperly When choosing a source to work with, the following characteristics are...
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Inverse-Square Law of Gamma Radiation As an electromagnetic wave, gamma radiation shares many of the same wave properties as light Light sources which are further away appear fainter because...
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IB DP Maths: AA HL复习笔记4.6.2 Calculations with Normal Distribution
Calculating Normal Probabilities How do I find probabilities using a normal distribution? How do I calculate P(X = x): the probability of a single value for a normal distribution? The probability ...
AQA A Level Physics复习笔记8.1.3 Alpha, Beta & Gamma Radiation
Alpha, Beta & Gamma Radiation Alpha Particles Alpha (α) particles are high energy particles made up of 2 protons and 2 neutrons (the same as a helium nucleus) They are usually emitted fr...
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Edexcel IGCSE Chemistry 复习笔记 1.7.2 Covalent Bonds: Dot & Cross Diagrams Covalent Bonds: Dot & Cross Diagrams Covalent substances tend to have small molecular structures, such as ...
Edexcel IGCSE Chemistry 复习笔记 1.7.1 Formation of Covalent Bonds
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