Multiple Choice
Because the factor h on the right side of the Heisenberg uncertainty principle has units of Joule-seconds, it suggests that the energy of a system also has uncertainty. The uncertainty in energy depends on the length of the time interval during which a system exists. ΔEΔt ≥ h/4π. Suppose an unstable mass is produced during a high-energy collision such that the uncertainty in its mass is me/100. (me = 9.11 × 10−31 kg.) How long will this particle exist?
A) 6.4 × 10−20 s
B) 2.3 × 10−23 s
C) 1.0 × 1015 s
D) 1.2 × 1013 s
E) 8.1 × 10−19 s
Correct Answer:

Verified
Correct Answer:
Verified
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