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Author Question: An piece of space debris is released from rest at an altitude that is two earth radii from the ... (Read 80 times)

Yolanda

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An piece of space debris is released from rest at an altitude that is two earth radii from the center of the earth. Compared to its weight on Earth, the weight of this debris is
 
  A) zero.
  B) one-quarter of its weight on the surface of the earth.
  C) the same as on the surface of the earth.
  D) one-half of its weight on the surface of the earth.
  E) one-third of its weight on the surface of the earth.

Question 2

If the force exerted on an object is in the negative direction, the work it does on the object must be
 
  A) negative.
  B) positive.
  C) The work could be either positive or negative, depending on the direction the object moves.


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strudel15

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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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strudel15

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