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Calculate the rms speed of smoke particl...

Calculate the rms speed of smoke particles of mass `5 xx 10^(-17) kg` in their Brownian motion in air at NTP. Given `k_(B) = 1.38 xx 10^(-23) J//K`

A

1.5m/s

B

3.0m/s

C

1.5 cm/s

D

3cm/s

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