Answered: 5 PHYSICS 7C LECA (47200) Course Home

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Physics

5 PHYSICS 7C LECA (47200) Course Home

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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Concept explainers

Special Relativity

The theory of special relativity discusses how space and time are related to objects traveling along a straight line at a constant speed. Simply stated, as an object reaches the speed of light, its mass becomes infinite and it is unable to move faster than light. This interstellar speed limit has been the topic of much debate in astronomy, and also in science fiction when people consider how to fly over large distances.

Question

5
PHYSICS 7C LECA (47200)
Course Home
<Homework #6
Problem 9.82
Part A
Exactly one turm of a flexible rope with mass m is wrapped around a uniform
cylinder with mass M and radius R. The cylinder rotates without friction about a
horizontal axle along the cylinder axis. One end of the rope is attached to the
cylinder. The cylinder starts with angular speed w. After one revolution of the
cylinder the rope has unwrapped and, at this instant, hangs vertically down,
tangent to the cylinder.
Find the angular speed of the cylinder at this time. You can ignore the thickness of the rope. (Hint: Use Equation U = Mgycm-)
Express your answer in terms of the variables m, M, R, and appropriate constants.
Submit
Request Answer
Part B
Find the linear speed of the lower end of the rope at this time.
Express your answer in terms of the variables m, M, R, and appropriate constants.
?
Submit
Request Answer
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