Today' s topics Fluids in motion Bernouilli’ s equation Viscous fluids Simple oscillations

The Simple Pendulum A pendulum is made by suspending a mass m at the end of a string of length L Find the frequency of oscillation for small displacements mg

At ordinary temperature, matter exists in one of three states Solid- has a shape and forms a surface Liquid- has no shape but forms a surface Gas-has no shape and forms no surface What do we mean by“ fluids”? F| uids are“ substances that flow

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

The impulse of the force action on an object equals the change in momentum of the object

Problem: How High? A projectile of mass m is launched straight up from the surface of the earth with initial speed vo. What is the maximum distance from the center of the earth Rmax it reaches before falling back down

Work Kinetic-Energy Theorem: (Net Work done on object] change in kinetic energy of object

Summary (with comparison to 1-D kinematics)

Katzenstein Distinguished Lecture prof. Franck Wilczek Nobel Prize in Physics 2004 From MIT Title: The Universe is Strange Place Where: Room P--36 When: Friday at 4: 00PM Refreshments at3:00 PM in front of P--36 Come for great talk

An Example Consider the following two cases