Lecture24a - Astronova Pioneer anomaly possibly due to...

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Astronova Pioneer “anomaly” possibly due to uneven heat radiation? Sag A* outbursts 50 and 300 years ago X-Ray “light echos” MW black hole activity Cassini mission extended 2 yrs Lunar dust mission planned for 2011
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Final Exam Wednesday May 14 9:00 am – 10:30 am Physics Lecture Hall Closed book and notes Computer-graded multiple-choice questions Material covered: Text chapters 22 - 27 Lectures 15-27 (March 13 through May 1) Bring Student ID card and a #2 pencil Practice Exam on class web page soon
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Makeup Final Exam Monday May 12, noon – 1:30 pm SEC 203 Same format & coverage as regular exam Only for those with verified exam conflicts or Dean’s notes
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Extra Credit Submit multiple-choice questions for final exam (with 5 answer choices). Email submission preferred Deadline: 5 pm Monday, May 5 Accepted questions replace low quiz scores with perfect scores – up to 2 quizzes replaced
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Previous Lecture Cosmic Background Radiation Strong evidence for Big Bang Small anisotropies source of structure today Forces of nature, unification at high energy Inflation in early universe BB nucleosynthesis H 75%, He 25%, independent of density 2 H, Be, Li show matter ~ 0.04
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Quiz Question #1 The observed uniformity of the cosmic background radiation: A. verifies Wien’s Law B.
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