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Author Question: A string is wrapped tightly around a fixed pulley that has a moment of inertia of 0.0352 kg m2 and ... (Read 148 times)

newbem

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on: Jul 29, 2018
A string is wrapped tightly around a fixed pulley that has a moment of inertia of 0.0352 kg  m2 and a radius of 12.5 cm. A mass of 423 g is attached to the free end of the string.
 
  With the string vertical and taut, the mass is gently released so it can descend under the influence of gravity. As the mass descends, the string unwinds and causes the pulley to rotate, but does not slip on the pulley. What is the speed of the mass after it has fallen through 1.25 m? A) 2.00 m/s
  B) 2.28 m/s
  C) 1.97 m/s
  D) 3.94 m/s
  E) 4.95 m/s

Question 2

Platinum melts at 3215F. What is the corresponding temperature in the Kelvin scale?
 
  A) 2041 K
  B) 2135 K
  C) 2207 K
  D) 2296 K
  E) 3215 K
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katara

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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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newbem

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Reply 2 on: Jul 29, 2018
Excellent

6ana001

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

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