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Author Question: How much energy is stored in a room 3.0 m by 4.0 m by 2.4 m due to the earth's magnetic field with a ... (Read 46 times)

theo

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on: Jul 29, 2018
How much energy is stored in a room 3.0 m by 4.0 m by 2.4 m due to the earth's magnetic field with a strength of 5.0  10-5 T? (0 = 4  10-7 T  m/A)
 
  A) 29 mJ B) 57 mJ C) 10 mJ D) 100 mJ E) 570 mJ

Question 2

The Q value for a particular reaction is -2.4 MeV, and the reaction's threshold energy is 9.60 MeV. What is the ratio of the mass of the incident particle to the mass of the stationary target nucleus?
 
  A)
 
  -0.75
  B)
 
  0.25
  C)
 
  3
  D)
 
  4
  E)
 
  5


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xthemafja

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

A

Answer to Question 2

C


theo

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Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)

parshano

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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