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Unformatted text preview: Lightening Review Torque & Static Equilibrium 0 / 100 CrossTab Label Which mass is heavier? 1. The hammer portion. 2. The handle portion. 3. They have the same mass. Balance Point Cut at balance point 0 / 100 CrossTab Label Locate the Center of Mass 1. 4 Meters 2. 5 Meters 3. 8 Meters M X=0 X=10M 10N 40N Periodic Motion Chapter 13 Periodic systems are all around us • Rising of the sun • Change of the seasons • The tides • Bird songs • Rotation of a bicycle wheel Periodic motion is any motion that repeats on a regular time basis. Time Position Period, T Periodic Motion t, time Amplitude Period, T The motion PERIOD is the time, T, to return to same point. The FREQUENCY, f, is the inverse of the period, 1/T. The AMPLITUDE, A, is the maximum displacement. A Since the motion returns to the same point at t=T, it must be true that π ϖ 2 = T so π ϖ 2 1 = = T f Harmonic Motion: Key concepts • Harmonic motion is an important and common type of repetitive, or “oscillatory” motion • Harmonic motion is “sinusoidal” • Oscillatory motion results when an applied force (1) depends on position AND (2) reverses direction at some position....
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This note was uploaded on 08/16/2011 for the course PHY 2053 taught by Professor Vellaris during the Fall '08 term at University of Central Florida.
 Fall '08
 Vellaris
 Physics, Center Of Mass, Mass, Static Equilibrium, Light

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