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Author Question: A beam of white light is incident on a thick glass plate with parallel sides, at an angle between 0 ... (Read 274 times)

jerry coleman

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on: Jul 29, 2018
A beam of white light is incident on a thick glass plate with parallel sides, at an angle between 0 and 90 with the normal. Which color emerges from the other side first?
 
  A)
 
  red
  B)
 
  green
  C)
 
  blue.
  D)
 
  violet
  E)
 
  None of the given; all colors emerge at the same time.

Question 2

Consider the motion of a 1.00 kg particle that moves with potential energy given by U(x) = -(2.0 Jm)/x + (4.0 Jm2)/x2. Suppose the particle is moving with a speed of 30.0 cm/s when it is located at x = 3.00 m.
 
  What is the position with the greatest value of x at which the particle comes to rest? A)
 
  6.73 m
 
  B)
 
  5.48 m
 
  C)
 
  8.69 m
 
  D)
 
  9.21 m
 
  E)
 
  7.29 m


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tkempin

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Reply #1 on: Jul 29, 2018
Answer to Question 1

E

Answer to Question 2

C


jerry coleman

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Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


tkempin

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Reply #3 on: Jul 29, 2018
Great! Please up vote :D


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