YuzheJun 13, 2017Different types of quadrilateral - basic calculation当面对数不清的数学运算公式时,最有效的记忆方式是理解公式中每一个缩写字母的含义例如A = area; S = side; P = perimeter; b = base; h = height,这些简单的缩写不会随着时间的推移而遗忘掉。 #GMATMaths #GREMaths
YuzheJun 11, 2017Charging by Contact and by Induction - physics/物理(a) When a charged rod is brought near the metal sphere without touching it, some of the positive and negative charges in the sphere are...
YuzheJun 11, 2017Law of Conservation of Electric Charge - physics/物理Like charges repel and unlike charges attract each other. A new technology based on the electric force may revolutionise the way books...