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# rev1f10 - TA Tomoyuki Nakayama Monday PHY 2048 Physics 1...

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TA: Tomoyuki Nakayama Monday, August 30, 2010 PHY 2048: Physics 1 with Calculus, Fall 2010 Review: Chapter 1.1-2.8 The purpose of this review is to refresh your memory. Physics is a cumulative subject, so make it sure you understand basic concepts and typical problem solving techniques in previous chapters before moving on to a new chapter! ________________________________________________________________________________ A. Conversion of Units An astronomical unit (AU) is equal to the average distance from Earth to the Sun, about 92.9 × 10 6 mi. A parsec (pc) is the distance at which a length of 1 AU would subtend an angle of exactly 1 second of arc. A light-year (ly) is the distance that light, traveling through a vacuum with a speed of 186 000 mi/s, would cover in 1.0 year. Express the Earth-Sun distance in parsecs and light-years. B. 1D Motion w/ Constant Acceleration When a high speed passenger train traveling at 60 m/s rounds a bend, then the engineer sees that a locomotive has improperly entered onto the track from a siding and is a distance D = 600 m ahead.

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rev1f10 - TA Tomoyuki Nakayama Monday PHY 2048 Physics 1...

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