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习题练习：Rotational basic parameter
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 作者: admin  发布日期: 2024-08-13 17:43    总分: 10分  得分: _____________

答题人: 游客未登录  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 i .pj9(buwp,jjcfip z-0jb*(a non-stretching belt to a wheel of radius 0.2 m (wheel B). The belt does notwj-ipbb,p0 pzi(9j (ujcjf *. 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 moving counterclockwis w81/np54k/ cs4 lfcwa5dywo ze during a one lap race on an elli1 854d fw4w5ylo/zkw/cas cpnptical 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 capz54tyo z,kv:y6:xq prs all moving counterclockwise dyv px zztkq:o5,4py6:uring a one lap race on an elliptical track.
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 all moving countercl; wua7k;lwx. d sm47ziockwise during a one lap 74 .saxmlw;uwid7 k;z race on an elliptical 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 av; ided kk0+uvl +r9 vbznpzaq +qj+-)3erage angular speed of the hour hand on a standard clock (in units of rad++k;djr+qe -dzk9 i)anl+z3 qbvu pv0/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 track one kilometer inexh rs-hj3uud)mkqtgb+ / ; 55 circumference. The first car can circle the track in 15 secu+m gtd;)q x3se55/kh -r jubhonds 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 the 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 met in order to usezg;w3d s nyhh7j-(coq63tm7w gae+ (s the rotational kinematics e-wmq6h c7anws3j gso; td7e y3(g+z( hquation $\Delta\theta=w_0t+\frac{2}{1}αt^{2}$

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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 constant rate of 45 rev/min q.mt:vu4okd.. What is the average angular acceleration of the record to reach this final angular speed, having started from rest, if it takes 8 seconds to do som t.k:4dqvu. o? 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 t*uo5bs 43+mwop9kab to rest in 2.50 s. What was the initial aatw34 b+u5* opmskob 9ngular speed 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 qt 5db2j7g5m wrad/s)5bqdg j7m25w t?

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