Introduction A key policy question is how do households respond to the incentives presented in the U.S. tax code? We will examine: Labor supply -Saving Housing Portfolio Composition

一、光程(optical path) 1、光在真空中的速度c=lu1 2、光在介质中的速度u=ucn

The forced response The steady state responseThe(t) has been switched into the circuit at some remote U.=V. cos ot time in the past, and the natural response has died-out completely. The forced response(steady state response)must satisfy the differential equation

一、填空题(每小题2分,共20分) 1、在Q、W、U、H、S、G、T等物理量中, 属于体系容量性质的有 属于体系强度性质的有 属于体系状态函数的有 属于过程函数的有

52.1 Introduction 52.2 Theoretical Background Alexander C. Ehrlich 52.3 Relation to the Electronic Structure-(i) ot >1

current of one port into the voltage of the otherport and vice verse. U1 =-ais \2 =ai..gyration constant

1 Find F(s) if f(t) = (a)(t-3);(b)4t u(t-3); (c)4 cos to(t-3). 2 Obtain partial-fraction expansions for each of the following rational functions, and find the corresponding time functions:

A current i at Li produces an open circuit voltage u,at L2s dyal

Ohm's law states that voltage across many types of conducting materials is directly proportional to the current flowing through the material. U= Ri or R= i R--resis tance()( linear resistor) The resistor is a passive element that cannot deliver power or store energy

一、斜抛运动的轨迹方程和最大射程 例一人投掷标枪,投掷前以速度0匀速向前跑动标枪出手时相对于人的速度炯,且U<℃,求投掷的角度为多大时射程最大?