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Author Question: How much mass should be attached to a vertical ideal spring having a spring constant (force ... (Read 130 times)

rlane42

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on: Jul 29, 2018
How much mass should be attached to a vertical ideal spring having a spring constant (force constant) of 39.5 N/m so that it will oscillate at 1.00 Hz?
 
  A) 39.5 kg
  B) 2.00 kg
  C) 1.00 kg
  D) 1.56 kg
  E) 6.29 kg

Question 2

A figure skater rotating at 5.00 rad/s with arms extended has a moment of inertia of 2.25 kg  m2. If he pulls in his arms so his moment of inertia decreases to 1.80 kg  m2, what will be his new angular speed?
 
  A) 2.25 rad/s
  B) 4.60 rad/s
  C) 6.25 rad/s
  D) 0.81 rad/s
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bigsis44

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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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rlane42

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


bigsis44

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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