13. Three moles of an ideal monatomic gas with an initial temperature 400 K and initial pressure 5 Pa undergoes an adiabatic expansion to one-half its initial pressure. What is the ratio of the finalvolume to the initial volume? (A) 1.52 (B) 1.66 (C) 1.71 (D) 1.85 (E) 2.

8.To transmit a transverse waves with an average power Pav, speed v, amplitude A and angular frequency w, along a stretched string with a tension F and a linear density μ. If the tension increased fourfold, the wave velocity becomes v'. With the wavelength unchanged, the new frequency is w'. If the same amount of average power (P'av =Pav) is transmitted as before, but with this new w', then the ratio of the new amplitude to the original amplitude must be (A) 0.25(B) 0.35 (C) 0.5 (D) 0.7 (E) 1.

13. Three moles of an ideal monatomic gas with an initial temperature 400 K and initial pressure 5 Pa undergoes an adiabatic expansion to one-half its initial pressure. What is the ratio of the final
volume to the initial volume?
(A) 1.52
(B) 1.66
(C) 1.71
(D) 1.85
(E) 2.

相關試題

相關試卷