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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.ltkil5ulv 7 al06g8 egi(ol0 q9/j8u-cwt x /c1 m (wheel A) is attached 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 1 revolution, wheel A will rotate thruj -(veictl7i tl g 0gl/9 oq 5ck06lul/8axw8ough



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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 carszc1ye cr s;6)ju;a, 3e* kw *udbq.six all moving counterclockwise during a one lap z;*q,s wds cbky 13*u) jcxaeruie.6; 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 s(h2 zs*pyhil4 u k1k2zeonm 6/napshot of three cars all moving counterclockwise during a one lap race on an ellipte *i2/ pn(sk1zmu l62ho4kh yzical 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 counte:spicr( e rh-+*k g.tt*ff- hyt4dwm1m gpf 46rclockwise during a one lap race +t. fmscrkhtfr4g*1 4w(6f-m :-d epith yg*pon 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 represenv qo:pxdd dtp-:b f5t8p xn9c m*m9/:7pskt:jts the average angular speedxtpmjq9n57s cm *kf:tb d8- pt9: :/dxpdvp:o of the 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 are racing on a circular track one kilometer wm8n98x2t re wtxu;+rin circumference. The first car can circle the track in 15 seconds at top speed while the second car can circle the track in 12 m2eru9+8 xr8;wxw tn tseconds 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 xry)kl 1zv 4,y in order to use the rotational kinemar4),lyxzk1 vytics equation $\Delta\theta=w_0t+\frac{2}{1}αt^{2}$

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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 spipooxc kz/swoc/:khqvr , 2*w/ +cp4m1o5 )xvcnning at a constant rate of 45 rev/min. 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 so? All answers are in uni*+c5xr,kmcxq142 c :ovoc/shwp k p )//zowvots 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 revolutionsk 1xzrf (x /qx*p(h77d.wum xd when coming to rest in 2.50 s. What wxu1* /dz(df x xh(7wmpxkq7r.as the initial 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 c:mr :/y . gm5(dexaaprad/s)dxp:(e:a r .agc/ym5m?

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