38 - Special Relativity II

# 38 - Special Relativity II - Physics 212 Fall 2009...

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Physics 212 Fall 2009 12/02/2009 Special Relativity II Relativity in Practice Special Relativity - Clock on satellite is slower that stationary ground clock by 7 μ s/day General Relativity - Clock on satellite is faster that stationary ground clock by 45 μ s/day 38 μ s/day difference (if uncorrected) translates to a large positional difference!

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Special Relativity Observation of events in coordinate systems DeFne observer, event Synchronization of clocks Simultaneity Time Dilation Length Contraction Velocity Addition Paradoxes Implications Newton’s Laws, Maxwell’s Equations General Relativity
Summary 1. The laws of physics are the same for observers in all inertial frames. No one frame is preferred. 2. The speed of light in a vacuum has the same value c in all directions and in all inertial reference frames. Einstein’s Postulates of Special Relativity Light is Special Oscillations (of E & B) in time and space produce the propagation of an E&M wave (via Maxwell’s Equations) If we could transform to a system (via relative motion) where the wave was at rest - it would cease to exist -- no propagation - no oscillations -- The time interval between two events depends on how far apart they occur in both space and time; that is their spatial and temporal separations are entangled.

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## This note was uploaded on 10/03/2011 for the course PHYS 221 taught by Professor Tedeschi during the Fall '09 term at South Carolina.

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38 - Special Relativity II - Physics 212 Fall 2009...

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