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Author Question: A 4.0 cm tall object is placed 60 cm away from a converging lens of focal length 30 cm. What is the ... (Read 36 times)

sarasara

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on: Jul 29, 2018
A 4.0 cm tall object is placed 60 cm away from a converging lens of focal length 30 cm. What is the nature and location of the image?
 
  A)
 
  The image is real, 2.5 cm tall, 30 cm on the same side as object.
  B)
 
  The image is virtual, 2.5 cm tall, 30 cm on the other side of the lens.
  C)
 
  The image is virtual, 2.0 cm tall, 15 cm on the other side of the lens.
  D)
 
  The image is virtual, 4.0 cm tall, 60 cm on the same side as object.
  E)
 
  The image is real, 4.0 cm tall, 60 cm on the other side of the lens.

Question 2

1.0 kg of steam at 100C condenses to water at 100C. What is the change in entropy in the process?
 
  A)
 
  zero
  B)
 
  6.1  103 J/K
  C)
 
  3.0  103 J/K
  D)
 
  -6.1  103 J/K
  E)
 
  none of the above
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Kedrick2014

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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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sarasara

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Reply 2 on: Jul 29, 2018
Excellent

ricroger

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Reply 3 on: Yesterday
Wow, this really help

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