Can two microscopic or quantum particles be entangled even when they are exerting no forces on each other?
A) Yes, because they can still communicate with each other by means of electromagnetic radiation.
B) Yes, they could be entangled but so far apart as to exert no significant forces on each other.
C) No, because entanglement occurs only by means of the electromagnetic force and the other fundamental forces.
D) No, because in order for a particle to be trapped in the field of another particle, it must feel the second particle's force field.
E) No, because the psi field is actually a force field.
Question 2
Near the earth the intensity of radiation from the sun is 1.35 kW/m2. What volume of space in this region contains 1.0 J of electromagnetic energy? (c = 3.0 108 m/s, 0 = 4 10-7 T m/A, 0 = 8.85 10-12 C2/N m2)
A) 4.5 10-6 m3
B) 3300 m3
C) 7.4 10-4 m3
D) 1400 m3
E) 220,000 m3
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