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Author Question: A 1.53-kg piece of iron is hung by a vertical ideal spring. When perturbed slightly, the system is ... (Read 79 times)

shofmannx20

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on: Jul 29, 2018
A 1.53-kg piece of iron is hung by a vertical ideal spring. When perturbed slightly, the system is moves up and down in simple harmonic oscillations with a frequency of 1.95 Hz and an amplitude of 7.50 cm.
 
  If we choose the total potential energy (elastic and gravitational) to be zero at the equilibrium position of the hanging iron, what is the total mechanical energy of the system?
  A) 0.633 J B) 0.955 J C) 0.646 J D) 0.000 J E) 0.844 J

Question 2

Velma passes Mort at a high speed. Each holds a meter stick, oriented parallel to the direction of relative motion. Mort observes that
 
  A) his meter stick is 1 m long, and Velma's meter stick is longer than 1 m.
  B) his meter stick and Velma's meter stick are both shorter than 1 m.
  C) his meter stick is longer than 1 m, and Velma's meter stick is 1 m long.
  D) his meter stick and Velma's meter stick are both 1 m long.
  E) his meter stick is 1 m long, and Velma's meter stick is less than 1 m long.
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coreycathey

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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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shofmannx20

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Reply #2 on: Jul 29, 2018
TY


coreycathey

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Reply #3 on: Jul 29, 2018
You're welcome


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