SuperTutor

(15)

$15/per page/Negotiable

About SuperTutor

Levels Tought:
Elementary,Middle School,High School,College,University,PHD

Expertise:
Accounting,Business & Finance See all
Accounting,Business & Finance,Economics,Engineering,HR Management,Math Hide all
Teaching Since: Apr 2017
Last Sign in: 327 Weeks Ago, 4 Days Ago
Questions Answered: 12843
Tutorials Posted: 12834

Education

  • MBA, Ph.D in Management
    Harvard university
    Feb-1997 - Aug-2003

Experience

  • Professor
    Strayer University
    Jan-2007 - Present

Category > Physics Posted 08 May 2017 My Price 6.00

A twine-spooling operation

A twine-spooling operation at a gift-wrap factory uses a motorized wheel of 7 cm radius

and 500 gram mass to wind twine onto spools. One such wheel is rotating at 1400 rpm

when the motor’s power supply fails, and friction starts to slow the wheel. By the time the

workers realize what has happened, 119.3 m of string have been improperly wound and the

wheel is turning at a rate of 1050 rpm.

a) What is the magnitude of the average angular acceleration provided by friction?

b) How long did it take for the wheel to slow to 1200 rpm?

c) By the time the wheel stops, how much string will need to be unwound from the spool? 

Answers

SuperTutor
(15)
Status NEW Posted 08 May 2017 01:05 AM My Price 6.00

-----------

Attachments

file 1494209212-Solutions file.docx preview (56 words )
S-----------olu-----------tio-----------ns -----------fil-----------e -----------Hel-----------lo -----------Sir-----------/Ma-----------dam----------- T-----------han-----------k y-----------ou -----------for----------- yo-----------ur -----------int-----------ere-----------st -----------and----------- bu-----------yin-----------g m-----------y p-----------ost-----------ed -----------sol-----------uti-----------on.----------- Pl-----------eas-----------e p-----------ing----------- me----------- on----------- ch-----------at -----------I a-----------m o-----------nli-----------ne -----------or -----------inb-----------ox -----------me -----------a m-----------ess-----------age----------- I -----------wil-----------l b-----------e q-----------uic-----------kly----------- on-----------lin-----------e a-----------nd -----------giv-----------e y-----------ou -----------exa-----------ct -----------fil-----------e a-----------nd -----------the----------- sa-----------me -----------fil-----------e i-----------s a-----------lso----------- se-----------nt -----------to -----------you-----------r e-----------mai-----------l t-----------hat----------- is----------- re-----------gis-----------ter-----------ed -----------onÂ----------- th-----------is -----------web-----------sit-----------e. ----------- H-----------YPE-----------RLI-----------NK -----------&qu-----------ot;-----------htt-----------p:/-----------/wo-----------rkb-----------ank-----------247-----------.co-----------m/&-----------quo-----------t; -----------\t -----------&qu-----------ot;-----------_bl-----------ank-----------&qu-----------ot;----------- -----------Tha-----------nk -----------you----------- -----------
Not Rated(0)