Fundamental Forces: Calculate an estimate of the range of a hypothetical force with the proton as the virtual exchange particle. (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, mproton = 1.67 × 10-27 kg)
A. 6.7 × 10-25 m
B. 2.1 × 10-16 m
C. 1.5 × 10-15 m
D. 6.0 × 10-8 m
Answer: B
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