Chapter 25 Magnetism 1. Magnet and Magnetic Field 2. Definition of Magnetic Field 3. Force on an Electric Charge Moving in a Magnetic Field 4. Torque on a Current Loop

solator: Definition An isolator is a device that allows light to pass along a fibre in one direction but not in the opposite direction

5-1对流换热概说 对流换热以牛顿冷却公式为基础,公式的具体形式为: q=hAt (5-1a 对于面积为A的接触面,换热量为:

A practical \blue-collar science initially concerned with economics industry, real life problems DYNAMICS--Concerned with the concepts of energy transfers between a system and its environment and the resulting

The kinetic energy of a rotating system looks similar to that of a

2-1 (1)(2)假设A下滑 gcos660°-ta=ma t -m-30°=mb 得a mAgcosMBgcoS360-30° +m =-0.12m/s2 系统 =TB ma+mB 将向右边运动

3Newton's' rings牛顿环 equipment: microscope A-a lens of radius of curvature R B-an accurately plane glass plate Interference pattern:

• Why polar molecules • Polar molecules in a 3D optical lattice • Spin exchange interactions with polar molecules • Increasing the lattice filling

显然,a不是厄米算符,a≠a。但ata是厄米算符,(ata)=a'a。 问题:aa是什么力学量? [a=0,∴与i共同本征态,只要求解了首的本征方程,就求解了 的本征方程

复旦大学：《数学物理方法 Methods of Mathematical Physics》课程教学资源（教学研究）Understanding the power reflection and transmission coefficients of a plane wave at a planar interface