資訊推薦

• 40.如附圖所示的裝置,彈簧秤下方吊著塑膠筒,圓柱體則完全沒入裝著液體的燒杯中,試問在25℃時,下列何種狀況,彈簧秤的讀數最大?(塑膠筒容積=圓柱體體積) (A)塑膠筒內裝滿水,燒杯內也裝水(B)塑膠
• 【題組】14.若飛機改以作順時鐘方向且速率愈愈快的圓周運動,則在P點之受力方向為圖中所示何者? (A)(B)(C)(D)
• 41.A、B、C為三個體積相同的物體,將其投入水中,如附圖所示,則其所受的浮力大小依序為何? (A)A>C>B(B)B=C>A (C)A=B=C (D)A=B＞C。
• 5.25℃、1atm時,純氧對水之溶解度為1.5x mol/L,則25℃時,1atm空氣與水達溶解平衡時,每升水中之溶氧量為若干克?(A)9.6x (B)4.8x (C)9.6x (D)4.8x (E
• 【題組】43.將A、B彈簧並聯如附圖(二),當A、B彈簧全長皆為35公分時,則施力F為多少公克重?(A)30 (B)40 (C)60 (D)80
• 6.如圖,密閉容器中三個相同的燒杯分別加入三種不同溶液。甲:30.0mL之1.0 M尿素水溶液；乙:20.0mL之1.5M蔗糖水溶液；丙:10.0mL之3.00 M葡萄糖水溶液。整個系統達平衡後,各杯
• 【題組】16.若A、B、C三個球的切線速度量值分別為V1、V2、V3,則V1:V2:V3?(A)1:1:1(B)6:5:3(C)1:2:3(D)9:3:1。
• 【題組】17.若A、B、C三個球的加速度量值分別為a1、a2、a3,則a1:a2:a3=?(A)1:1:1(B)6:5:3(C)1:2:3(D)9:3:1。
• 【題組】45.當物體恰將啟動時,三者的摩擦力大小關係為:(A)甲>乙>丙(B)甲=乙=丙(C)丙>乙>甲(D)乙>丙>甲
• 7.液體甲與液體乙混合可形成理想溶液,且溶液上的蒸氣為理想氣體。若t°C時,測得該溶液的蒸壓為400mmHg,且蒸氣中甲的莫耳分率為0.20,溶液中甲的莫耳分率為0.25,則t°C時純甲的蒸氣壓為若干
• 8.乙二醇(分子量62)可做為抗凍劑,若欲使5.00kg的水在-9.30℃時仍不結冰,至少需加入乙二醇若干克?(水的Kf=1.86℃/m)(A)15.5(B)155(C) 1550 (D) 15500
• 9.  0.05mol的Na2O、Ba(OH)2、醋酸及食鹽分別溶入1L的水中。在20℃下,哪一溶液的滲透壓最大?(A)Na2O溶液(B)Ba(OH)2溶液(C)醋酸溶液(D)食鹽溶液(E)四者滲透壓
• 10.生理食鹽水的滲透壓與人體血液相同,若生理食鹽水的體積莫耳濃度約與重量莫耳濃度相等,則生理食鹽水的凝固點為多少℃?(人體血液的滲透壓在37℃時約為7.7atm；水的莫耳凝固點下降常數是1.86℃/
• 2. Despite his oath to ________  the law, the accused willfully chose to flout his power while be wa
• 3. If there is an explosion, you should leave the building as quickly as possible. Do not stop to __
• 4. Under federal scntencing guidelines, a person is subject to enhanced penalties if he or she is __
• 5. All overseas workers in South Korea with expired EPS contracts but unable to return to their coun
• 6. The Canada Border Services Agency announced yesterday that three Colombian foreign nationals were
• 7. Rear-end crashes are often caused by sudden deceleration or if another driver ________  to a high
• 8. According to the Ambulance Service, the ________  arrived at the scene to find an overturned car
• 9. Surveillance cam ras captured a man cutting brake lines of 35 vehicles in a a Washington neighbor
• 10. Any evidence that is ________  to the defendant in a criminal trial is considered exculpatory, w
• 11. Sexual harassment in the workplace is an ________ exercise of power.(A)illegible (B)illegitimate
• 12. With the evidence showing his intention of permanently ________the woman of the property, the ac
• 13. The high-ranking general has been identified as the ________  of the revolt in the south.(A)succ