UW-Madison PHYSICS 207 - PHYSICS 207 Lecture Notes (28 pages)

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PHYSICS 207 Lecture Notes



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PHYSICS 207 Lecture Notes

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Lecture Notes


Pages:
28
School:
University of Wisconsin, Madison
Course:
Physics 207 - General Physics
General Physics Documents

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Physics 207 Labs start this week MC1a 1c Physics 207 Lecture 2 Pg 1 Physics 207 Lecture 2 Sept 10 Agenda for Today Finish Chapter 1 Chapter 2 1 2 2 Units and scales order of magnitude calculations significant digits on your own for the most part Position Displacement Velocity Average and Instantaneous Speed Acceleration Dimensional Analysis Assignments For next class Finish reading Ch 2 read Chapter 3 Vectors Mastering Physics HW1 Set due this Wednesday 9 10 Mastering Physics HW2 available soon due Wednesday 9 17 Each assignment will contain 10 to 11 problems Physics 207 Lecture 2 Pg 2 Length Distance Length m Radius of Visible Universe 1 x 1026 To Andromeda Galaxy 2 x 1022 To nearest star 4 x 1016 Earth to Sun 1 5 x 1011 Radius of Earth 6 4 x 106 Sears Tower 4 5 x 102 Football Field 1 x 102 Tall person 2 x 100 Thickness of paper 1 x 10 4 Wavelength of blue light 4 x 10 7 Diameter of hydrogen atom 1 x 10 10 Diameter of proton 1 x 10 15 Physics 207 Lecture 2 Pg 3 Time Interval Time s Age of Universe 5 x 1017 Age of Grand Canyon 3 x 1014 Avg age of college student 6 3 x 108 One year 3 2 x 107 One hour 3 6 x 103 Light travel from Earth to Moon 1 3 x 100 One cycle of guitar A string 2 x 10 3 One cycle of FM radio wave 6 x 10 8 One cycle of visible light 1 x 10 15 Time for light to cross a proton 1 x 10 24 Physics 207 Lecture 2 Pg 4 Mass Object Mass kg Visible universe Milky Way galaxy Sun Earth Boeing 747 Car Student Dust particle Bacterium Proton Electron Neutrino 1052 7 x 1041 2 x 1030 6 x 1024 4 x 105 1 x 103 7 x 101 1 x 10 9 1 x 10 15 2 x 10 27 9 x 10 31 1 x 10 36 Physics 207 Lecture 2 Pg 5 Some Prefixes for Power of Ten Power 10 18 10 15 10 12 10 9 10 6 10 3 103 106 109 1012 1015 1018 Prefix Abbreviation atto femto pico nano micro milli a f p n m kilo mega giga tera peta exa k M G T P E Physics 207 Lecture 2 Pg 6 Order of Magnitude Calculations Estimates Question How many french fries placed end to end would it take to reach the moon Need to know something from



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