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Author Question: The charge on the square plates of a parallel-plate capacitor is Q. The potential across the ... (Read 31 times)

ss2343

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The charge on the square plates of a parallel-plate capacitor is Q.
 
  The potential across the plates is maintained with constant voltage by a battery as they are pulled apart to twice their original separation, which is small compared to the dimensions of the plates. The amount of charge on the plates is now equal to A) 4Q.
  B) 2Q.
  C) Q.
  D) Q/2.
  E) Q/4.

Question 2

A hospital patient has been given a sample of 131I , which has a half-life of 8.04 days. This sample is decaying at 5.9 times the acceptable level for exposure to the general public.
 
  How long must the patient wait for the decay rate of the sample to reach the acceptable level? A) 21 days
  B) 14 days
  C) 9.9 days
  D) 8.9 days


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deja

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ss2343

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Reply 2 on: Jul 29, 2018
Gracias!


diana chang

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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