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Author Question: A typical public utility (power company) supplies electricity at an approximate cost of A) 10./kW ... (Read 64 times)

HudsonKB16

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on: Jul 27, 2018
A typical public utility (power company) supplies electricity at an approximate cost of
 
  A) 10./kW  h.
  B) 10./kW  h.
  C) 1./kW  h.
  D) 1./kW  h.
  E) 100./kW  h.

Question 2

The end of a cylindrical plastic rod is polished and cut perpendicular to the axis of the cylinder.
 
  Determine the minimum index of refraction so that a light ray entering the end of the rod will always be totally internally reflected within the rod, i.e., it will never escape the rod until it comes to the other end. Assume a critical angle of 45.


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johnharpe

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

1.414


HudsonKB16

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Reply 2 on: Jul 27, 2018
Gracias!

jamesnevil303

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Reply 3 on: Yesterday
:D TYSM

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