Practice Final Exam Solutions - Web Physics - IUPUI

Problem 8(A) v max = ωA ω = 16 rad/s(B)(C)(D)ω k / m k = mω 2 = 0.5(16) 2 = 128 N/mT = 2π/ω = π/8 sec or 0.39 secF max = kA = 128(0.40) = 51.2 NProblem 9f o = f s (v – v o )/(v – v s ) = 780(331 + 32)/(331 – 30) = 941 HzProblem 10(A) T = 57° + 273 = 330 KW isothermal = nRT ln(V i /V f ) = 2.0(8.31)(330) ln (1/2) = –3.80 × 10 3 J(B) Isothermal process ΔU = 0 = Q + W, so Q = –WΔS = Q/T = –W/T = +11.5 J/KPage 3