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What is the minimum speed of a proton whose position along the x axis is measured to be x=2.50 +or- 0.25 pm?
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According to hisenberg uncertanity principle
P*delta x = h
m*v*delta x = h
v = h/(m*delta x)
= 6.625*10^-34/(1.67*10^-27*(2.5-0.25)*10^-12)
= 1.763*10^7 m/s
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