8. A 0.5 kg block attached to a spring is pulled a distance of 20 cm horizontally and released. If the period of the oscillation is 0.8 s, what is the kinetic energy of the block at t = 0.2 s? (A) 0.42 J (B) 0.62 J (C) 0.82 J (D) 1.02 J (E) 1.24 J

9. TVγ-1 is constant for an ideal gas undergoing an adiabatic process, where γ is the ratio of heat capacities CP/CV. This is a direct consequence of (A) the zeroth law of thermodynamics alone (B) the zeroth law and the ideal gas equation of state (C) the first law of thermodynamics alone (D) the ideal gas equation of state alone (E) the first law and the ideal gas equation of state

8. A 0.5 kg block attached to a spring is pulled a distance of 20 cm horizontally and released. If the period of the oscillation is 0.8 s, what is the kinetic energy of the block at t = 0.2 s?
(A) 0.42 J
(B) 0.62 J
(C) 0.82 J
(D) 1.02 J
(E) 1.24 J

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