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Author Question: An electron has a wavelength of 0.123 nm. What is its energy in eV? A) 80. keV B) 20. keV C) ... (Read 46 times)

elizabeth18

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on: Jul 27, 2018
An electron has a wavelength of 0.123 nm. What is its energy in eV?
 
  A) 80. keV
  B) 20. keV
  C) 40. keV
  D) 10. keV
  E) 60. keV

Question 2

Above what speed do the Relativistic and the Newtonian expressions for KINETIC ENERGY disagree by more than 1?
 
  What will be an ideal response?


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jordangronback

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

D

Answer to Question 2

v/c = 0.12 (v = 3.6  107 m/s )


elizabeth18

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Reply 2 on: Jul 27, 2018
Excellent

Animal_Goddess

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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