In the late 1890s many people had x rays taken oftheir body. X-ray machines were common in shoestores in the late 1940s and early 1950s for people toexamine how their shoes fi t; customers enjoyed seeingpictures of their bones. Discuss the safety of theseundertakings.
General Physics 151 Week 8 Notes (October 17, 2016) Chapter 7: Rotation and Angular Momentum Key to my notes: All notes that are taken from the lecture will be the first section, notes I take from the textbook will be the second section, and the vocabulary words from the chapter with definitions will be the last sections! (: Lecture Notes Rotation the act of turning of an extended object or system about an axis Rigid body model an extended object that has a fixed shape and content distribution o The point on this is a perfect circle o Velocity is perpendicular to the radius and axis The rotation axis does not need to go through the body o