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习题练习:Rotational basic parameter



 作者: admin发布日期: 2024-08-13 17:43   总分: 10分  得分: _____________

答题人: 匿名未登录  开始时间: 24年08月07日 16:00  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.11: A wheel of radius 0.1 m (wheel A) is attached by a non-stretching bel5/)3gsin y fc8db, bd +s9bnftt to a wheel o)fb +8s9 infnbdtg3s/b,cd5 yf radius 0.2 m (wheel B). The belt does not slip. If wheel B turns through 1 revolution, wheel A will rotate through



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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.01: The diagram below is a snapshot of three cars all movi+ ( njrchhfz3(ng counterclockwise during a or(3h(+ fc nhjzne lap race on an elliptical track.
Which car has had the lowest average speed during the race so far?



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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.02: The diagram below is a snapshot of three cars all m(,fze6 ko h,qvv 9vfo 0m /o+bt+rmqm:oving counterclockwise during a one lap race on an elliptical track. ,bof vvkqm(t0+ r6z9hofmvoq /+me,:
Which car at the moment of the snapshot MUST have a net force acting on it?



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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.03: The diagram below is a snapshot of three cars altc), /uyq;jsl 2f mun3l moving counterclockwise during a one lap race on an elliptfnu;, /t cs32ul)q jymical track.
Which car can finish the race without changing its present momentum?


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5#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.25: Which one of the following choices best represents the average angular sp-y46 azxy3w ) o rs2jjyzzej4sd+1( yjeed of the hour hajzy 1yawo3)-yr6y+ zs2(jxze 4sjj4dnd on a standard clock (in units of rad/s)?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.40: Suppose two cars are racing on a circular tr/s+ )mof.uy: +uqpd+6:e f b rmd-tqxxhgz.b -ack one kilometer in circumference. The first car can circle the track in 15 seconds at top speed while the second car can circle the track in 12 seconds at top speed. How much lead does the first car need starting th q 6x-. xemdo+:)hbq/bsuy-.zuff:rd++mgtp e last lap of the race not to lose?

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.16: What condition must be me:lco y 8b2i0r4osvc1ny1( fgf t in order to use the rotational kinematics equat fo( cr:0lsc onf1yib284 vy1gion $\Delta\theta=w_0t+\frac{2}{1}αt^{2}$

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.32: A turntable plays a record by spinning at a ; fq7h*-/ :,j ta-k wrybrminje-wph*constant rate of 45 rev/min. What is the average angular acceleration of the record to-rne*jy 7w k r aqhwp*ti/b:mf-;-j h, reach this final angular speed, having started from rest, if it takes 8 seconds to do so? All answers are in units of rad/s2.

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.18: A disk of radius 75.0 cm makes 3.5 revolutions when coming tb2 k-tf6ymt6 tr/+suaf b89f-jru (uw o rest in 2.50 s. What was the initial angular speed9-ts-uf fkta 6jbwmu/2 rb8yrt6u( +f of the disk?

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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.12: What is the average angular speed of the secondhand on a clock (in rq9n1 v d,zq3f-lesnyvz 9g1:n ad/s)?g 1-nv 1v syq:99qzznln, de3f

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