If you were to cut a small permanent bar magnet in half,
A) neither piece would be magnetic.
B) one piece would be a magnetic north pole and the other piece would be a south pole.
C) each piece would in itself be a smaller bar magnet with both north and south poles.
D) None of these statements is true.
Question 2
A certain particle's energy is measured by a detector to within 1.0 10-18 J.
What is the minimum uncertainty we can have in its arrival time at the detector? ( h = 1.055 10-34 J s)
A) 1.1 10-15 B) 1.1 10-12 C) 1.1 10-13 D) 1.1 10-16 E) 1.1 10-14
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