A space traveler moving at a speed of 0.70c with respect to the earth makes a trip to a distant star that is stationary relative to the earth. He measures the length of this trip to be 6.5 light-years. What would be the length of this same trip (in light-years) as measured by a traveler moving at a speed of 0.90c with respect to the earth?

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