14. Which reservoir is closest to the “Day Zero” cutoff on April 12 and why would this
be the most concerning to the City of Cape Town?
(A)increase of relatively unproductive slums
(B)urban agglomateration effect (i.e. cluster and network effect)
(C)severe civil wars during the period in question
(D)growth policies paying attention to female or youth employment
5. For an ideal Stirling engine, find out the absorbed heat and
entropy change in the isochoric process (Va, Pd) → (Va, Pa) of
a full cycle as shown in the right figure, assuming the system
contains one mole mono-atomic ideal gas. You should use R to
denote the universal gas constant in your answers. (10%)
3. 如圖所示,在水平光滑桌面有一圓環半徑為 R,質量為 4m,環心兩側
分別有體積不計的重物 3m、2m,假設圓環及重物原先皆靜止於桌面,
今環心發生爆炸,使二重物向左右二側分離且 3m 的速度為 V(相對於
桌面),重物碰圓環後即黏上圓環不脫落,假設過程中不涉及轉動,
求當兩重物皆黏上圓環後,
(1)圓環移動多少距離?
(A)
(B)