The radius of a typical nucleus is about 5.0 10-15 m. Assuming ...

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The radius of a typical nucleus is about 5.0  10-15 m. Assuming this to be the uncertainty in the position of a proton in the nucleus, estimate the uncertainty in the proton's energy (in eV).
 
  A)
 
  0.2 MeV
  B)
 
  0.4 MeV
  C)
 
  0.6 MeV
  D)
 
  0.8 MeV
  E)
 
  1.0 MeV

Question 2

An electron (mass = 9.1  10-31 kg) is confined in a cubical box 2.3  10-12 m on each side. The minimum energy of the electron is approximately
 
  A)
 
  1.1  10-12 J.
  B)
 
  1.1  10-13 J.
  C)
 
  1.1  10-14 J.
  D)
 
  1.1  10-11 J.
  E)
 
  1.1  10-15 J.

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Answer to Question 1

D

Answer to Question 2

E

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Thank you!

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