Common Exam 2 • Monday Nov 4th 4:15-5:45pm Sec 013, 015 report to CULM Lec 2 Sec 025 Report to Kupf 209 • My review session will be FRIDAY 1-2:30pm Room 407 Tiernan • Tutoring on Saturday Teaching Assistant: Dhvanit Mehta, email@example.com Location and Times: 101 Tiernan Hall - 1-5:30pm, WEDS ONLY Saturdays Prior to Common Exam (10/7, 11/4, and 11/25), 1-4pm. or by Appointment.
Announcements • Grades updated on course web page • Problems with Iclicker grades for Week 6 fixed. • Please check grades to make sure that they are accurate.
Spinning toy tops http://www.youtube.com/watch?v=LDXAhwhsZ9k If the top were not spinning, what would happen to it?
Iclicker Question #1 Consider a CD disk spinning around about its geometric center. Which of the following statements is true concerning a point on the inner track of the CD compared to a point on the outer track of the CD? • Both the inner track and the outer track have the same angular velocity. • Both tracks have the same tangential acceleration. • Both tracks have the same velocity. • The tracks have different centripetal accelerations • I can not tell because the stupid CD is scratched.
Iclicker Question #2 Which should have a larger moment of inertia, a ring of material with radius R and total mass M or a solid disk of mass R and same total mass M? • The ring • The solid disk • Both should have the same moment of inertia • It depends upon the material used to make the ring • “One Ring to rule them all, One Ring to find them,One Ring to bring them all and in the darkness bind them..”