- #1
Pushoam
- 962
- 52
Homework Statement
Homework Equations
The Attempt at a Solution
## \frac 1 2 m<v_x^2> =\frac 1 2 k_BT ,
\\ \sqrt{ <v_x^2>} = 556~ m/s ## So, I guess that the standard deviation should be less than rms speed.
So, the option is (a)
## \left< ax + b \right> = a\left<x\right> + b ##
So, ## \left< v_x^2 - <v_x^2> \right> = \left< v_x^2\right> - \left< v_x^2\right> = 0 ##
Is this correct?
[/B]
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