美國網申系統的分類和申請批次的內容！
2022年秋季申請季已經全面拉開帷幕，美國作為留學生熱門選擇的求學地之一，與往年不同的是，考慮到疫情等原因，一直以來鮮有變化的申請截止日期、申請要求等，今年都發生了重大變化。今天一起來了解美國網申系統...
AQA A Level Physics復習筆記8.3.4 Nuclear Radius
Estimating Nuclear Radius Closest Approach Method In the Rutherford scattering experiment, alpha particles are fired at a thin gold foil Some of the alpha particles are found to come straigh...
AQA A Level Physics復習筆記8.3.3 Nuclear Excited States
Nuclear Excited States In the same way that electrons can exist in excited states, nuclei can also exist in?excited states After an unstable nucleus emits an alpha particle, beta particle or...
AQA A Level Physics復習筆記8.3.2 Decay Equations
Changes in N and Z by Radioactive Decay There are four reasons why a nucleus might become unstable, and these determine which decay mode will occur Too many neutrons Decays through?beta-minu...
IB DP Maths: AA HL復習筆記4.6.3 Standardisation of Normal Variables
Standard Normal Distribution What is the standard normal distribution? The?standard normal distribution?is a normal distribution where the?mean is 0?and the?standard deviation is 1Why is the standa...
不參與U.S.News排名，但實力強勁的美國大學有哪些？
在美國有相當一部分院校是不參與U.S.News排名的，原因各不相同，而作為申請者，如果在選校時忽略了這些“無名”但實力強勁的學校，很有可能會與自己真正的夢校擦肩而過。今天小編來聊聊那些長期被忽視，但學術實力...
AQA A Level Physics復習筆記8.3.1 Nuclear Instability
Nuclear Stability Graph The most common elements in the universe all tend to have values of N and Z less than 20 (plus iron which has Z = 26, N = 30) Where: N = number of neutrons Z = number...
AQA A Level Physics復習筆記8.2.4 Applications of Radioactivity
Radioactive Dating The isotope carbon-14 is commonly used in radioactive dating It forms as a result of cosmic rays knocking out neutrons from nuclei, which then collide with nitrogen nuclei...
AQA A Level Physics復習筆記8.2.3 Half-Life
Half-Life Half-life is defined as: The time taken for the initial number of nuclei to halve for a particular isotope This means when a time equal to the half-life has passed, the?activity?of...
AQA A Level Physics復習筆記8.2.2 Exponential Decay
Exponential Decay In radioactive decay, the number of undecayed nuclei falls very rapidly, without ever reaching zero Such a model is known as?exponential decay The graph of number of...
QS世界大學排名中，中國在前20強中有哪些專業？
2022QS世界大學學科排名里，中國大陸共有93所高校上榜，數量排名全球第三，僅次于英國（105所）和美國（227所），其中10所高校為首次上榜。多年來，中國大陸上榜院校數量穩步上升：2018年上榜高校數量為74所。 在...
Edexcel IGCSE Chemistry 復習筆記 1.9.1 Explaining Conductivity
Edexcel IGCSE Chemistry 復習筆記 1.9.1 Explaining Conductivity Conductivity of Covalent Compounds Electric current is the flow of?charged particles This usually refers to electrons, but it c...
