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pait I a A point mass (m) is undergoing uniform circular motion with an angular speed (o) in a horizontal circle of radius r. Which of the following represents the angular momentum of the mass? a) mro b) mr?/o c) rm/m d) mro e) mo A A skater extends her arms, holding a 2kg mass in each hand. She is rotating about a vertical axis at a given rate. She brings her arms inward toward her body in such a way that the distance of each mass from the axis changes from 1m to 0.5m. Her rate of rotation will be a) doubled b) halved c) quadrupled d) quartered e) the same A 45kg girl is sitting on a seesaw 0.6m from the balance point. How far, on the other side, of the balance point should a 60kg boy sit so that the seesaw will remain balanced? 45 kg 9 60kg 0.6m a) 0.3m b) 0.35m c) 0.4m d) 0.45m e) 0.5m A A solid disk with a radius R rotates at a constant rate w. Which of the following points has the greater angular displacement? A. A В. В С. С D. All points have the same angular displacement. ω 9. A rod rotates about a pivot at its center at 2 rad/s. Its angular velocity increases uniformly to 14 rad/s in 3 s. Find the rod's angular acceleration over this time period. A. 2 rad/s2 B. 4 rad/s2 C. 6 rad/s2 D. 8 rad/s2 A rod rotates about a pivot at its center at 2 rad/s. Its angular velocity increases uniformly to 14 rad/s in 3 s. Find the rod's angular displacement over this time period. A. 6 rad B. 12 rad C. 18 rad D. 24 rad

pait I a A point mass (m) is undergoing uniform circular motion with an angular speed (o) in a horizontal circle of radius r. Which of the following represents the angular momentum of the mass? a) mro b) mr?/o c) rm/m d) mro e) mo A A skater extends her arms, holding a 2kg mass in each hand. She is rotating about a vertical axis at a given rate. She brings her arms inward toward her body in such a way that the distance of each mass from the axis changes from 1m to 0.5m. Her rate of rotation will be a) doubled b) halved c) quadrupled d) quartered e) the same A 45kg girl is sitting on a seesaw 0.6m from the balance point. How far, on the other side, of the balance point should a 60kg boy sit so that the seesaw will remain balanced? 45 kg 9 60kg 0.6m a) 0.3m b) 0.35m c) 0.4m d) 0.45m e) 0.5m A A solid disk with a radius R rotates at a constant rate w. Which of the following points has the greater angular displacement? A. A В. В С. С D. All points have the same angular displacement. ω 9. A rod rotates about a pivot at its center at 2 rad/s. Its angular velocity increases uniformly to 14 rad/s in 3 s. Find the rod's angular acceleration over this time period. A. 2 rad/s2 B. 4 rad/s2 C. 6 rad/s2 D. 8 rad/s2 A rod rotates about a pivot at its center at 2 rad/s. Its angular velocity increases uniformly to 14 rad/s in 3 s. Find the rod's angular displacement over this time period. A. 6 rad B. 12 rad C. 18 rad D. 24 rad

College Physics
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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Can you answer this question. It has 6 parts and is multiple choice. You can just me the letter for the answer. Thank you!!!
pait I A A point mass (m) is undergoing uniform circular motion with an angular speed (0) in a horizontal circle of radius r. Which of the following represents the angular momentum of the mass? a) mr?o b) mr?/o c) ro?/m d) mro e) mo R A skater extends her arms, holding a 2kg mass in each hand. She is rotating about a vertical axis at a given rate. She brings her arms inward toward her body in such a way that the distance of each mass from the axis changes from 1m to 0.5m. Her rate of rotation will be a) doubled b) halved c) quadrupled d) quartered e) the same A 45kg girl is sitting on a seesaw 0.6m from the balance point. How far, on the other side, of the balance point should a 60kg boy sit so that the seesaw will remain balanced? 45 kg 60kg 0.6m a) 0.3m b) 0.35m c) 0.4m d) 0.45m e) 0.5m 4) A solid disk with a radius R rotates at a constant rate w. Which of the following points has the greater angular displacement? A. A В. В С. С D. All points have the same angular displacement. 9. A rod rotates about a pivot at its center at 2 rad/s. Its angular velocity increases uniformly to 14 rad/s in 3 s. Find the rod's angular acceleration over this time period. A. 2 rad/s2 В. 4 rad/s? C. 6 rad/s? D. 8 rad/s2 e A rod rotates about a pivot at its center at 2 rad/s. Its angular velocity increases uniformly to 14 rad/s in 3 s. Find the rod's angular displacement over this time period. A. 6 rad B. 12 rad C. 18 rad D. 24 rad
Transcribed Image Text:pait I A A point mass (m) is undergoing uniform circular motion with an angular speed (0) in a horizontal circle of radius r. Which of the following represents the angular momentum of the mass? a) mr?o b) mr?/o c) ro?/m d) mro e) mo R A skater extends her arms, holding a 2kg mass in each hand. She is rotating about a vertical axis at a given rate. She brings her arms inward toward her body in such a way that the distance of each mass from the axis changes from 1m to 0.5m. Her rate of rotation will be a) doubled b) halved c) quadrupled d) quartered e) the same A 45kg girl is sitting on a seesaw 0.6m from the balance point. How far, on the other side, of the balance point should a 60kg boy sit so that the seesaw will remain balanced? 45 kg 60kg 0.6m a) 0.3m b) 0.35m c) 0.4m d) 0.45m e) 0.5m 4) A solid disk with a radius R rotates at a constant rate w. Which of the following points has the greater angular displacement? A. A В. В С. С D. All points have the same angular displacement. 9. A rod rotates about a pivot at its center at 2 rad/s. Its angular velocity increases uniformly to 14 rad/s in 3 s. Find the rod's angular acceleration over this time period. A. 2 rad/s2 В. 4 rad/s? C. 6 rad/s? D. 8 rad/s2 e A rod rotates about a pivot at its center at 2 rad/s. Its angular velocity increases uniformly to 14 rad/s in 3 s. Find the rod's angular displacement over this time period. A. 6 rad B. 12 rad C. 18 rad D. 24 rad
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