## Heisenberg Equation

$\Delta p \Delta x\geq \frac{h}{4\pi }$

Mary Shih 3J
Posts: 96
Joined: Wed Sep 30, 2020 9:39 pm

### Heisenberg Equation

-In the Heisenberg questions, after finding delta p from the equation, do u always have to plug it back into delta p=mV to find uncertainty in position?

Posts: 94
Joined: Wed Sep 30, 2020 10:01 pm

### Re: Heisenberg Equation

To find the uncertainty in position, once you find delta p from delta p = mv (you are given delta m and delta v in the question) you can use that to then to back track to find delta x using the equation delta p * delta x = ½ h bar.

Pranav Daggubati 3C
Posts: 112
Joined: Wed Sep 30, 2020 9:35 pm

### Re: Heisenberg Equation

Use the $\Delta x\Delta p = \frac{1}{4\pi}h$ to find x because you have all the other values already.

Catie Donohue 2K
Posts: 96
Joined: Wed Sep 30, 2020 9:55 pm

### Re: Heisenberg Equation

-In the Heisenberg questions, after finding delta p from the equation, do u always have to plug it back into delta p=mV to find uncertainty in position?

I might have misunderstood your question, but if velocity and mass are given to you, you can solve for delta p using delta p = mass * velocity. This equation won't give you the uncertainty in position (and can only be useful if you have two of the three values needed to solve for it), but if that's what you're looking for then you would have to plug in delta p for the equation "delta x (or uncertainty in position) = h/4pi/delta p" to find the uncertainty in position.