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Lab Write-Up 2

# Lab Write-Up 2 - Chapter 2 Kepler's Law Report by Nick...

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Chapter 2: Kepler’s Law Report by: Nick Orozco Section 5 10 February 2008 Lab Partner: Colin Smolinsky

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Nick Orozco Section 5 10 February 2008 Lab Partner: Colin Smolinsky Chapter 2: Kepler’s Law The purpose of this lab is to test the validity of Kepler’s three laws regarding planetary motion. We will do so by collecting data about the orbits of planets, moon, and a comet and subsequently apply that data to Kepler’s three laws. Below is a summary of Kepler’s three laws of planetary motion: 1. Planets have elliptical orbits with the sun located at the focus of the ellipsis. 2. An imaginary line connecting the sun to the orbit of any planet will sweep out in equal areas of the ellipse in equal time. 3. The square of planet’s orbital is proportional to the cube of its semi-major axis. Equation: P 2 = a 3 Data 2.1 Collecting the Planetary Data: Mercury (1 week interval) Week Date Solar Distance Week 1 March 30 0.36 AU Week 2 April 6 0.33 AU Week 3 April 13 0.31 AU Week 4 April 20 0.32 AU Week 5 April 27 0.35 AU Week 6 May 4 0.39 AU Week 7 May 11 0.43 AU Week 8 May 18 0.45 AU Week 9 May 25 0.47 AU Week 10 June 1 0.46 AU Week 11 June 8 0.45 AU Week 12 June 15 0.42 AU
2.2 Collecting the Planetary Data: Mars (2-month intervals)

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