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Unformatted text preview: Physics 7C, Fall 2009 lecture bullet points I will write briefly the bullet points covered in each lecture. If you missed a lecture, you will definitely need to look at someones notes or the textbook, but this may help you know where to look. Lecture III : Gravitational Doppler effect and differences from non-relativistic case. Gravitational Dopper: f = s 1 + 1- f, (1) where a source moving toward the receiver has its light blue-shifted, and one moving away has its light red-shifted. Velocity addition law: considering what happens to a spacetime interval leads to a velocity addition law. A check on this law is that if a particle moves with the speed of light in one frame, it moves with that same speed in another frame. The velocity vector is found to transform differently from a spacetime vector. Four-vectors: the Lorentz transformation above can be written as a matrix L that takes the unprimed coordinates to the primed ones: x = L . So if we can define momentum in a way that it transforms with the same matrix, then conservation of momentum (i.e., that a certain sumthat it transforms with the same matrix, then conservation of momentum (i....
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- Fall '08