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Author Question: X-rays with a wavelength of 0.00100 nm are scattered at 130 by free electrons. What is the ... (Read 94 times)

Brittanyd9008

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X-rays with a wavelength of 0.00100 nm are scattered at 130 by free electrons.
 
  What is the kinetic energy of each recoil electron? (1 eV = 1.60  10-19 J, melectron = 9.11  10-31 kg, c = 3.00  108 m/s, h = 6.626  10-34 J  s)
  A) 0.68 MeV B) 0.34 MeV C) 0.99 MeV D) 2.0 MeV E) 0.50 MeV

Question 2

If we double the resistance in a circuit but keep the current in it constant, the power dissipated by that circuit will
 
  A) be four times as great.
  B) be two times as great.
  C) be one-half as great.
  D) be one-fourth as great.


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mcinincha279

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Brittanyd9008

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Reply 2 on: Jul 29, 2018
:D TYSM


fatboyy09

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

 

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