11. There is a one-to-one analogy between the damped simple harmonic oscillator and the R-L-C circuit. What property of an R-L-C circuit matches the mass of the damped simple harmonic oscillator? (A) L (B) 1/L (C) C (D) 1/C

4. A point-like bug of mass m lies on the rim of a uniform disk of mass M that can rotate freely about its center. Initially the bug and disk rotate together with an angular velocity ω₀. Then the bug walks half way to the center of the disk. What is ratio of the new kinetic energy of the system to its initial kinetic energy? (A) (4m+2M)/(m+2M) (B) (m+2M)/(4m+2M) (C) (2m+4M)/(2m+M) (D) (2m+M)/(2m+4M)

11. There is a one-to-one analogy between the damped simple harmonic oscillator and the R-L-C circuit. What property of an R-L-C circuit matches the mass of the damped simple harmonic oscillator?
(A) L
(B) 1/L
(C) C
(D) 1/C

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