1.在298K时用Pb(s)电极来电解H2SO4溶液(0.1mol/kg,y±=0.265)若在电 解过程中把Pb阴极与另一摩尔甘汞电极相连组成原电池测得其电动势 E=1.0685V试求H2(g)在Pb电极上的超电势(只考虑H2SO4的一级电离)已知 (甘汞)=0.2802V

The relationship between The law of one price an asset's' value& price arbitrage Value maximization Interest rates the law financial decisions of one price Accounting measures of Exchange rates value

例1、锤重Q=300N,从高度H=1.5m处自由落到锻件上,如图所示,锻 件发生变形,历时t0.01s求锤对锻件的平均压力

1.设计一个二分频电路的梯形图。 2.试用定时器设计一个延时30min的延时电路。 3.两台电机的控制要求是:第一台电机运行10S后,第二台电机开

6.1水体与水体污染 6.1.1水件和水方染 6.1.2水体污染物及污染源 6.1.3水体污染类型 06.2河流水质模型 6.2.1河流水质模型简介 6.2.2河流的混合稀释模型 6.2.3守恒污染物在均匀流场中的扩散模型 6.2.4非守恒污染物在均匀河流中的水质模型 6.2.5 Streeter-Phelps-(s-P)模型 6.2.6河流水质模型中参数估值 6.3湖泊水库模型与评价 6.3.1湖泊环境概述 6.3.2湖泊环境质量现状评价 6.3.3湖泊环境预测模式 06.4地面水环境影响评价 6.4.1评价目的、分级及程序 6.4.2环境影响评价大纲 6.4.3项目分析和污染源调查 6.4.4地区水环境调查 6.4.5水环境影响预测及评价 6.4.6清洁生产和水污染防治

So far we have used Newton's second law= ma to establish the instantaneous relation between the sum of the forces acting on a particle and the acceleration of that particle. Once the acceleration is known,the velocity (or position) is obtained by integrating the expression of the acceleration (or velocity). There are two situations in which the cumulative effects of unbalanced forces acting on a particle are of interest to us. These involve:

In this lecture, we will revisit the application of Newton's second law to a system of particles and derive some useful relationships expressing the conservation of angular momentum. Center of Mass Consider a system made up of n particles. A typical particle, i, has mass mi, and, at the instant considered, occupies the position Ti relative to a frame xyz. We can then define the center of mass, G, as the point

Lecture D33: Forced Vibration Fosinwt m Spring Force Fs =-kx, k>0 Dashpot Fd =-ci, c>0 Forcing Fext Fo sin wt Newton's Second Law (mix =CF) mx+cx+kx= Fo sin wt =k/m,=c/(2mwn)

Policy analysis is hard Why is it so hard to tell what's going on with government actions? Consider lowering income tax rates. Will lowering taxes increase work effort and labor supply? · Unlike the physical and natural sciences, difficult to perform carefully controlled experiments on the economy

Basic Structure Fiqure 15.1 shows the series of steps used to compute a person's tax liability. Step 1: Compute Adjusted Gross Income (AGI) Step 2: Convert AG/ into taxable income by subtracting exemptions and deductions Step 3: Compute tax due by applying a rate schedule, and subtracting tax credits