Uncertainty in the velocity


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Cecilia Jardon 1I
Posts: 74
Joined: Fri Sep 28, 2018 12:16 am

Uncertainty in the velocity

Postby Cecilia Jardon 1I » Fri Oct 19, 2018 7:23 pm

Can someone remind me of when a certain delta v answer u is not possible to have? I just remember that it had something to do with comparing it to the speed of light constant.

AvaGordon_4F
Posts: 34
Joined: Fri Sep 28, 2018 12:25 am

Re: Uncertainty in the velocity

Postby AvaGordon_4F » Fri Oct 19, 2018 7:32 pm

I think I remember this... Do you mean the delta V answer we got from the problem we did in class? Because if so, that was a sample problem he did to show us that electrons could not be confined to the diameter of the nucleus. They have to exist outside of it. Because if we set our delta X value to be the diameter of a nucleus (ie, electrons are housed in the nucleus), then the delta V value of those electrons would be WAY faster than the speed of light. Since as far as we know things can't travel faster than the speed of light, that's an impossible number to get. So that means that electrons need to have a delta X value larger than the diameter of the nucleus (big enough to where we have a reasonable delta V) and have to exist outside it.


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