Chapter13_1-3_FA05 - Lightening Review Torque & Static...

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Unformatted text preview: Lightening Review Torque & Static Equilibrium 0 / 100 Cross-Tab 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 Cross-Tab 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.

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Chapter13_1-3_FA05 - Lightening Review Torque & Static...

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