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Author Question: An object that hangs from the ceiling of a stationary elevator by an ideal spring oscillates with a ... (Read 211 times)

Wadzanai

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on: Jul 29, 2018
An object that hangs from the ceiling of a stationary elevator by an ideal spring oscillates with a period T. If the elevator accelerates upward with acceleration 2g, what will be the period of oscillation of the object?
 
  A) 4T
  B) 2T
  C) T
  D) T/2
  E) T/4

Question 2

Two equal-magnitude forces are applied to a door at the doorknob. The first force is applied perpendicular to the door, and the second force is applied at 30 to the plane of the door. Which force exerts the greater torque about the door hinge?
 
  A) the first force (applied perpendicular to the door)
  B) the second force (applied at an angle)
  C) Both forces exert equal non-zero torques.
  D) Both forces exert zero torque.
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alexisweber49

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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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Alejandro Cervera

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Reply #2 on: Jan 4, 2021
Needed this, thank you!


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