The lowest possible temperature in outer space is \( 2.7 \mathrm{~K} \), which is associated wit...

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The lowest possible temperature in outer space is \( 2.7 \mathrm{~K} \), which is associated with the microwave background radiation left over from the formation of the universe. What is the rms speed of hydrogen molecules at this temperature? (The molar mass is given in Table 20-1.)
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