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Author Question: A uniform ball with diameter of 10 cm rolls without slipping on a horizontal tabletop. The moment of ... (Read 35 times)

corkyiscool3328

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on: Jul 29, 2018
A uniform ball with diameter of 10 cm rolls without slipping on a horizontal tabletop. The moment of inertia of the ball about an axis through its center is 2.2  10-3 kg  m2,
 
  and the translational speed of its center is 0.45 m/s.
  (a) What is its angular speed of the ball about its center of mass?
  (b) What is the rotational kinetic energy of the ball?
  (c) What is the ball's angular momentum about its center of mass?

Question 2

A negatively-charged plastic rod is brought close to (but does not touch) a neutral metal sphere that is connected to ground.
 
  After waiting a few seconds, the ground connection is removed (without touching the sphere), and after that the rod is also removed. The sphere is now A) negatively charged.
  B) positively charged.
  C) neutral.
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Smiles0805

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Reply #1 on: Jul 29, 2018
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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corkyiscool3328

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Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

frankwu0507

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Reply 3 on: Yesterday
Wow, this really help

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