When we fission the U-235 nucleus, the total rest-mass of all the resulting fragments of matter
A) is more than the mass of the original nucleus
B) is the same as the mass of the original nucleus.
C) is turned into broccoli.
D) is less than the mass of the original nucleus.
E) None of the above.
Question 2
A charged particle is placed at rest in the middle of a vacuum chamber, an enclosure that has been emptied of all matter. Consider some point X near a particular corner of the chamber.
Neglecting all influences other than the charged particle, what can be said regarding electric fields and electric forces at point X?
A) The is an electric field at X, but no electric force.
B) There is both an electric field and an electric force at X.
C) There is neither an electric field nor an electric force at X.
D) There is no electric field at X but there is an electric force at X.
E) It is impossible to answer this question without knowing what kind of charge the particle has.
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