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v = m

s

v = RT M R

T M

= 1 .4

R = 8 .314 J/mol K T = 299 .15 K

M = 0 .029 kg/mol

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26 C

x t

x1 = 2 .5 cm t 1 = 8 s x2 = 58 cm t 2 = 1 .62 ms x3 = 114 .5 cm t 3 = 3 .24 ms

%

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