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Author Question: A stone with a mass of 1.0 kg is tied to the end of a light string which keeps it moving in a circle ... (Read 101 times)

big1devin

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on: Jul 29, 2018
A stone with a mass of 1.0 kg is tied to the end of a light string which keeps it moving in a circle with a constant speed of 4.0 m/s on a perfectly smooth horizontal tabletop. The radius of the path is 0.60 m.
 
  How much work does the tension in the string do on the stone as it makes one-half of a complete circle? A) 100 J
  B) 3.8 J
  C) 0 J
  D) 40 J
  E) 80 J

Question 2

If the velocity versus time graph of an object is a horizontal line, the object is
 
  A) moving with zero acceleration.
  B) moving with constant non-zero acceleration.
  C) at rest.
  D) moving with increasing speed.
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peter

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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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big1devin

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Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

ttt030911

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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