P2207 L20_14 Gravitation - Copyright K Selby 2014 Physics 2207 Lecture 20 Assignment 6 is due on W Oct 22 at 6 pm For 7-71 ignore the answer given in

P2207 L20_14 Gravitation - Copyright K Selby 2014 Physics...

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P2207, © K. Selby 2014 Lecture 20 1 Physics 2207 Lecture 20 Assignment 6 is due on W Oct 22 at 6 pm. For 7-71, ignore the answer given in the back of your textbook. We want you to find the location of the COM of the three-mass system (not just the COM of each ball). No lab this week. LAB 5 Collisions in 1-D is next week . QUIZ 3 (Assignments 5 & 6) is next week. Please include “P2207” in the subject line if you send email to us! QUESTIONS? Ask me after class. Or email [email protected] Copyright © K. Selby, 2014
P2207, © K. Selby 2014 Lecture 20 2
P2207, © K. Selby 2014 Lecture 20 3 Where does gravity come from? -2 2
P2207, © K. Selby 2014 Lecture 20 4 r 2 .
P2207, © K. Selby 2014 Lecture 20 5 Newton’s universal law of gravitation The constant G = 6.67 × 10 -11 N m 2 kg -2 F G = G m 1 m 2 r 2
P2207, © K. Selby 2014 Lecture 20 6 -2 2
P2207, © K. Selby 2014 Lecture 20 7

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