Answer
Please see the work below.
Work Step by Step
We know that
$u=(\frac{3RT}{M})^{\frac{1}{2}}$
We plug in the known values to obtain:
$u=(\frac{3\times 8.31\times 365}{2.016\times 10^{-2}})^{\frac{1}{2}}=2.12\times 10^3\frac{m}{s}$
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