A string is wrapped around a uniform disk of mass M = 2.1 kg and radius R = 0.12 m. (Recall that the moment of inertia of auniform disk is (1/2) MR².) Attached to the disk are four low-mass rods of radius b = 0.16 m, each with a small mass m = 0.7 kg atthe end. The device is initially at rest on a nearly frictionless surface. Then you pull the string with a constant force F = 30 N. At theinstant when the center of the disk has moved a distance d = 0.041 m, a length w = 0.033 m of string has unwound off the disk.•mbimmPart 1M, RPart 2dV= 0.708548386Your answer is correct.Part 3m(a) At this instant, what is the speed of the center of the apparatus?@01 = i 5.08017Save for LaterFYour answer is incorrect.(b) At this instant, what is the angular speed of the apparatus?002 = iw+dSave for Laterm/seTextbook and MediaFradians/s(c) You keep pulling with constant force 30 N for an additional 0.042 s. Now what is the angular speed of the apparatus?radians/sAttempts: 1 of 10 usedAttempts: 3 of 10 used Submit AnswerAttempts: 0 of 10 used Submit Answer

Answered: Image /qna-images/answer/c998e9a5-5ca2-4c6e-82e8-dff394d1a1ed.jpg

(a) At this instant, what is the speed of the center of the apparatus? U = Part 2 0.708548386 (b) At this instant, what is the angular speed of the apparatus? @] = i 5.08017 Part 3 Your answer is incorrect. Save for Later m/s 02 = radians/s Attempts: 1 of 10 used (c) You keep pulling with constant force 30 N for an additional 0.042 s. Now what is the angular speed of the apparatus? radians/s Attempts: 3 of 10 used Submit Answer

(a) At this instant, what is the speed of the center of the apparatus? U = Part 2 0.708548386 (b) At this instant, what is the angular speed of the apparatus? @] = i 5.08017 Part 3 Your answer is incorrect. Save for Later m/s 02 = radians/s Attempts: 1 of 10 used (c) You keep pulling with constant force 30 N for an additional 0.042 s. Now what is the angular speed of the apparatus? radians/s Attempts: 3 of 10 used Submit Answer

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Applied Fluid Mechanics

A fluid is a substance that is continuously deformed by the application of shear stress. The rate of deformation of a fluid depends on its viscosity. The fluid tries to flow when it interacts with some other system.

Question

A string is wrapped around a uniform disk of mass M = 2.1 kg and radius R = 0.12 m. (Recall that the moment of inertia of a
uniform disk is (1/2) MR².) Attached to the disk are four low-mass rods of radius b = 0.16 m, each with a small mass m = 0.7 kg at
the end. The device is initially at rest on a nearly frictionless surface. Then you pull the string with a constant force F = 30 N. At the
instant when the center of the disk has moved a distance d = 0.041 m, a length w = 0.033 m of string has unwound off the disk.
•m
bi
m
m
Part 1
M, R
Part 2
d
V= 0.708548386
Your answer is correct.
Part 3
m
(a) At this instant, what is the speed of the center of the apparatus?
@01 = i 5.08017
Save for Later
F
Your answer is incorrect.
(b) At this instant, what is the angular speed of the apparatus?
002 = i
w+d
Save for Later
m/s
eTextbook and Media
F
radians/s
(c) You keep pulling with constant force 30 N for an additional 0.042 s. Now what is the angular speed of the apparatus?
radians/s
Attempts: 1 of 10 used
Attempts: 3 of 10 used Submit Answer
Attempts: 0 of 10 used Submit Answer

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