edge in meters per second squared (c) What is the linear speed of a point on its edge? 2. Helicopter blades withstand tremendous stresses. In addition to supporting the weight of a helicopter, they are spun at rapid rates and experience large centripetal accelerations, especially at the tip (a) Calculate the centripetal acceleration at the tip of a 4.00 m long helicopter blade that rotates at 300 rev/min. (b) Calculate the linear speed of the tip. 3. A gyroscope slows from an initial rate of 32.0 rad/s at a rate of 0.700 rad/st, (a) How long does it take to come to rest? (b) How many revolutions does it make before stopping? (a) t =

edge in meters per second squared (c) What is the linear speed of a point on its edge? 2. Helicopter blades withstand tremendous stresses. In addition to supporting the weight of a helicopter, they are spun at rapid rates and experience large centripetal accelerations, especially at the tip (a) Calculate the centripetal acceleration at the tip of a 4.00 m long helicopter blade that rotates at 300 rev/min. (b) Calculate the linear speed of the tip. 3. A gyroscope slows from an initial rate of 32.0 rad/s at a rate of 0.700 rad/st, (a) How long does it take to come to rest? (b) How many revolutions does it make before stopping? (a) t =

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Chapter 5 Problem 8: BIO Ultracentrifuge You are working in a biology lab and learning to use a new ultracentrifuge for blood tests. The specifications for the centrifuge say that a red blood cell rotating in the ultracentrifuge moves at and has a radial acceleration of 150,000 g’s (that is, 150,000 times ). The radius of the centrifuge is 0.15 m. You wonder if this claim is correct. Support your answer with a calculation.
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