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## Homework Statement

What is the de Broglie wavelength of a 10 microKelvin Rb atom? A 5000K electron?

## Homework Equations

[tex]\lambda=\frac{h}{p}[/tex]

V=[tex]\sqrt{\frac{3KT}{m}}[/tex]

## The Attempt at a Solution

I used the velocity equation to find the velocity relating to temperature and mass. Then, as p=mv, I calculated the wavelength of the Rb atom to be 86.4nm. I just want to make sure my line of thinking is correct and that I can use a similar process for the electron.

Thanks!