Chapter 5 Uniform Circular Motion Macintosh PICT image format is not supported What does it mean? How do we describe it? What can we learn about it

§2.1 牛顿运动三定律 §2.2 力学中常见的几种力 §2.3* 基本的自然力 §2.4 牛顿运动定律应用举例 §2.5 非惯性系与惯性力

I. Choose the Correct Answer 1. An object moves in the xy plane with an acceleration that has a positive x component. At time=0 the object has a velocity given by=3i +0j. What can be concluded about the y component of the acceleration?

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

§1.1 参考系、质点 §1.2 位置矢量、位移(矢量)、运动方程 §1.3 速度、加速度、匀加速运动 §1.4 曲线运动 §1.5 相对运动(relative motion)

Chapter 4 Differential Relations For Viscous Flow 4.1 Preliminary Remarks Two ways in analyzing fluid motion (1)Seeking an estimate of gross effects over a finite region or control volume. Integral ()Seeking the point-by-point details of a flow pattern by analyzing an infinitesimal region of the flow

Temperature: measure of the motion of the individual atoms and molecules in a gas liquid or solid related to average kinetic energy of constituents High temperature: constituents are moving around energetically

Case patient xxx, female, 35 years old Symptom: amenorrhea for47days; spot vaginal bleeding for days; sudden abdominal pain for 2 hours. Signs: Bp 12/8Kpa, P 120 times/min, abdominal tenderness and rebound tenderness(+); sharp pain on motion of the cervix

The causes of acceleration of a system--The first law of motion states that zero total force exists when the system has a constant velocity; a nonzero total force on the system causes its acceleration

Chap. 14: Energy in Thermal Processes Solids, liquids or gases have internal energy t Kinetic energy from random motion of molecules translation rotation vibration