一、安培力(Ampere force) 运动电荷在磁场中受力

一、电场强度与电势梯度(gradient)

一、自由度(degree of freedom) 分子平均平动动能

§19.1 统计方法的一般概念

§20.3 循环过程 卡诺循环

§20.4 热力学第二定律

一.简谐振动 1.运动方程和振动曲线

§20.2 克劳修斯熵公式 热力学第三定律

I. Choose the Correct Answer 1. An object is moving along the x axis with position as a function of time given by x=x(). Point is at x 0. The object is definitely moving toward O when

I. Choose the Correct Answer 1. Which statement is most correct? (C) (A)Uniform circular motion causes a constant force toward the center. (B)Uniform circular motion is caused by a constant force toward the center