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Author Question: A Christmas ornament made from a thin hollow glass sphere hangs from a small hook at its surface. It ... (Read 66 times)

Awilson837

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on: Jul 29, 2018
A Christmas ornament made from a thin hollow glass sphere hangs from a small hook at its surface. It is observed to oscillate with a frequency of 2.50 Hz in a city where g = 9.80 m/s2.
 
  What is the radius of the ornament? The moment of inertia of a hollow sphere of mass M and radius R about a point on its edge is 5MR2/3.
  A) 1.84 cm
  B) 3.68 cm
  C) 2.38 cm
  D) 3.98 cm
  E) 4.69 cm

Question 2

A thin hoop is supported in a vertical plane by a nail. What should the radius of the hoop be in order for it to have a period of oscillation of 1.00 s? The moment of inertia of a hoop of mass M and radius R about a point on its rim is 2MR2.
 
  A) 0.0154 m
  B) 0.0621 m
  C) 0.124 m
  D) 0.1876 m
  E) 0.248 m
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Shshxj

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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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Awilson837

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Reply 2 on: Jul 29, 2018
Gracias!

xiaomengxian

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Reply 3 on: Yesterday
Excellent

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