final_prac_soln_07

final_prac_soln_07 - Phy 9B, #1 Page 1 of 1 12/12/07...

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Unformatted text preview: Phy 9B, #1 Page 1 of 1 12/12/07 Physics 9B Review Session Final Exam Solutions [1] a) Thereare3translationaldegreesoffreedomforthecenterofmass.Therearenon-zero momentsofinertiaaboutallthreeaxes,sothereare3rotationaldegreesoffreedom.Thereare novibrationalmodesbecausetherodsarerigid.6degreesoffreedom. b) Foranadiabaticprocess, P 1 V 1 = P 2 V 2 P 2 = V 1 V 2 P 1 where= (C p /C v ) .Because thereare6degreesoffreedom, C v = 6 2 R =3 R and C p = C v +R C p =4 R =4/3. P 2 = 1 3 ( ) 4/3 5 atm ( ) =1.16atm....
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