A helicopter blade has an angular speed of 6.50 rev/s and has an angular acceleration of 1.30 rev/s2 . For points 1 and 2 on the blade in Figure 8.11, find the magnitudes of (a) the tangential speeds and (b) the tangential accelerations. R
Lecture 5 objectives 1. Name the stages of the cell cycle and describe the events in each stage Interphase (whole cell) G1: growth in size, synthesis of proteins and RNA for maintenance activities, synthesis of Proteins needed for S phase, duplication of Organelles variable in length of stage S: 6 hours, growth and DNA synthesis, Replication of DNA each of the 46 chromosome is duplicated into sister chromatid via DNA polymerase G 2: growth and final preparations for division 4 hours Mitosis (Events in nucleus) Prophase: Chromatin condenses into chromosomes, each with two sister chromatids joined at region called centrome re entrioles: organize microtubules, move in opposite directions Microtubules: network assem
