Lecture24

Lecture24 - Final Exam Wednesday May 12 4:00 5:30 pm...

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Final Exam Wednesday May 12 4:00 – 5:30 pm Physics Lecture Hall Closed book and notes Computer-graded multiple-choice questions Material covered: Text chapters 23 - 28 Lectures 15-27 (March 9 through April 29) Bring Student ID card and a #2 pencil Practice Exam on class web page soon
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Extra Credit Submit multiple-choice questions for final exam (with 5 answer choices). Email submission preferred Deadline: 5 pm Friday, April 30 Accepted questions replace low quiz and class participation scores– up to 1 quiz and 2 class scores replaced
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Previous Lecture Forces of nature, unification at high energy Pair Production and “freeze out” Inflation in early universe Events during the Big Bang BB nucleosynthesis H 75%, He 25%, independent of density 2 H, Be, Li show matter ~ 0.04
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Matter/Antimatter Problem all equilibrium processes make equal amounts of matter and antimatter pair production and annihilation in the early universe should not have favored matter our universe today is composed of matter – why? solution – inflation before inflation, quantum fluctuations would have small differences of matter/antimatter in small regions inflation stretches these small regions enormously subsequent annihilation leaves a residual of one type get a radiation dominated universe – like ours
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Origin of Structure cosmological principle requires a homogeneous and
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This note was uploaded on 01/31/2012 for the course 750 110 taught by Professor Ericgawaiser during the Fall '10 term at Rutgers.

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Lecture24 - Final Exam Wednesday May 12 4:00 5:30 pm...

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