I've posted a correct answer key to ODD problems in FILES; some of your books may be wrong in the solutions appendix.
Due Monday: bring g data from lab 1. 2: P-53, 55, 63, 69, have latest Loggerpro available at home computer. See tools for download instructions.
Due Tuesday: Barrons chapter 2, MX exercises 3,4,6,7 and FR 2,3,4 (As I said, you need to purchase Barrons Study Guide 4th Ed. Bring me $15 today and I will order one for you)
Also due Tuesday: give a 4 minute tour of your section of lab equipment
Wednesday: Hand in short report of Ball-drop lab 1 as a HW problem; report the settings you used in Loggerpro, and carefully report the set up. handwitten is fine. Include a sketch of each set up. The writing should be about a page long, and attach your loggerpro graphs that gave you acceleration.
Due Thursday: 3: Q-7, 9; P-35, 44, and do two 2-dot problems of your choice, and data analyzed from Lab3 for discussion
Thursday: evaluate and test next steps in Galileo ramp lab.
Due Friday: Lab 1 (galileo) Report due: 2 page memo, including photo, table of data (you must process and display data using Excel), sketch showing dimensions, propagation of error, comments on results, and suggestions to improve. I have posted the grading rubric in FILES. I will follow this when I grade the lab
Due Next Monday: F = G M1 M2/r This is the equation for a model that describes the dollar volume of trade between two countries, F, as a product of a constant G, the M (size of economy) of each country) and the inverse of the distance, r, between the countries. Does the form look familiar? Find a physical reason why the denominator is r and not r2.
read http://what-if.xkcd.com/62, and then find by web research a relationship between sphere size/mass and terminal velocity in air. Specifically, you should be able to show how big a spherical balloon must be to slow your terminal velocity to 10.m/s. See figure below. This problem is not for fun, there are good answers and you are expected to find one using accepted physics. Why? Because understanding drag through air is an important part of this year, and independent learning is a critical part of your life.
next week: we'll do lab on Go Motion and Video analysis with coffee filter
* goals for this week:
- Detail how calculus adds to our def’n of velocity and acceleration
- Be able to determine v or x from an equation of a
- Interpret classic plots relating x, v, and a as fct of time
- Assess recall of motion graphs through review activity (5to5 p 80)
figure 1. Sketch of person mass m falling at terminal velocity vt using spherical balloon of negligible mass.