L1_phys131_19sep07

L1_phys131_19sep07 - HRW's Fundamentals at SBX. It was the...

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Summary for Physics 131 Lecture 1, Sept. 19, 2007 1. Use Kilogram-meter-second system. 2. Need a coordinate system to define kinematical variables. 1. Position in meters is defined with respect to the chosen coordinate system. 2. Velocity is the rate of change of position in m/s, and is the slope of the position versus time graph: -x 0 +x dt dx t x lim V t x t t x x v 0 t INST 1 2 1 2 AV δ δ = δ δ - - = δ x t V is slope
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1. Acceleration in m/s 2 is the rate of change of velocity with time: dt dv t v lim a t v t t v v a 0 t INST 1 2 1 2 AV δ δ = δ δ - - = δ v t a is slope
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I have just seen a student who bought a PAPERBACK copy of
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Unformatted text preview: HRW's Fundamentals at SBX. It was the wrong ISBN number, came without webassign cards, and they sold him a physics 111 webassign card separately, rather than a physics 131 webassign-plus. If students buy the correct book they don't need to pay the extra 22 dollars for webassign-plus. If they buy webassign-plus access, they have access to the book online for that quarter. Please make sure your students haven't been shanghaied by the bookstores. Ed Adelson WARNING!...
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L1_phys131_19sep07 - HRW's Fundamentals at SBX. It was the...

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