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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 at iwaxb;*tj .9l: 5mis:whae+wtached by a non-stretching belt to a wheel of radius 0.2 m (wheel B). The belt does not slip. If wheel B turns through l ht;w m:5b*a+ a.9exiwsi:wj1 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 sna5 2 wnhdt:9l(x ogsw(cpshot of three cars all moving counterclockwise during a one lap race on an ellipticalos( dnw lxgh2:(9c5wt 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 snapv8o5k2w+ yz6ryw8 sr5u gsz7+khgb *l shot of three cars all moving counterclockwise during a one lap racey6g l+kr8o*zvs5 sk w257z 8 ryg+bhwu 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 snapsh/.ly; sy )ebjl8+ x x y6,covsywnj35go4np2wot of three cars all moving counterclockwise during a one lap race on an elliptical tracklyxy2n,sbo5) ec/sy;jw4g lwy j3.x vn+68 p o.
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 thegth1 gg 1 qkpa/h+j1p; following choices best represents the average angular speed of the tp1 hj qahg+p1k1gg /;hour hand 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 ar(/jv suh1yv x:ltw-m9e racing on a circular track 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 the last ly91s /jhl :(mt-vwv uxap 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 use the rotational kikce1. s t2:vbbnematics equatice s1.b2bkt: von $\Delta\theta=w_0t+\frac{2}{1}αt^{2}$

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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 cono 9cqvwh2 .9ujstant rate of 45 rev/min. What is the average aojhv cwu9q29 .ngular acceleration of the record to 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 pvz (t*tidz* 4-g(hoc to rest in 2.50 s. What was the iniz cz( *(4givhd-tp*t otial angular 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 4veam1 n1c /;wmpux*frlv1x 4 rad/s)?1mecvvmfr4 /lu *1n1px x4;aw

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  • 姓名:游客(未登录)
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    总分:10分 及格:6分 时间:不限时
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