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Author Question: A 60-kg skier starts from rest from the top of a 50-m high slope. If the work done by friction is ... (Read 55 times)

sammy

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on: Jul 29, 2018
A 60-kg skier starts from rest from the top of a 50-m high slope. If the work done by friction is -6.0 kJ, what is the speed of the skier on reaching the bottom of the slope?
 
  A) 31 m/s B) 24 m/s C) 17 m/s D) 28 m/s

Question 2

A piece of iron sinks to the bottom of a lake where the pressure is 21 times what it is at the surface of the lake. Which statement best describes what happens to the volume of that piece of iron?
 
  A) Its volume increases slightly.
  B) Its volume decreases slightly.
  C) There has been no change in the volume of the iron.
  D) Its volume becomes 1/21 what it was at the surface.
  E) Its volume becomes 21 times greater than at the surface.
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makaylafy

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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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sammy

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Reply #2 on: Jul 29, 2018
Thank you!


makaylafy

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Reply #3 on: Jul 29, 2018
Always glad to help...


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