資訊推薦

• 25.在直角座標xy平面上，有兩質點m1與m2，質點m1的質量為4kg且座標為(4,5)，質點m2的質量為2kg且座標為(1,–4），則兩質點的質心座標為何？ (A)(–2,–3) (B)(2,3)
• 26.工作人員將一個5m的長梯底端靜置於水平地面，頂端斜靠於光滑的鉛直牆面放置，該長梯質量為6kg，質心位於長梯底端1\/3處，且長梯底端與水平地面之最大靜摩擦係數為0.25。當長梯底端與牆面的水平
• 27.運動學中，物體運動軌跡的總長度，也就是將物體所經過的路程累計加總起來，為一純量。下列何者為此一敘述所指的物理量？ (A)位移 (B)路徑 (C)位置 (D)平移
• 28.一輛汽車能以等加速度花25sec從靜止加速至100km\/h，假設以相同的等加速度從靜止行駛直線跑道360m後停止加速，立刻以等速度進入半徑為100m的圓形彎道，此時汽車所承受的法線加速度為多
• 29.一輛以等速向前直行的公車，在封閉車廂內的座椅上，綁了一個比空氣輕的漂浮氣球，突然間司機緊急剎車以避免撞到前方蹦出的小狗，此時這顆氣球會往公車的哪個方向移動？ (A)前方 (B)後方 (C)左方
• 30.一彈簧常數為2N\/cm的螺旋壓縮彈簧直立放置，且一端固定於水 平桌面上，一質量10kg的物體在距離彈簧頂面上方11cm處的垂直 位置靜止釋放，假設彈簧有足夠的線性壓縮空間，且非機械能損 耗與
• 31.機械效率(Mechanicalefficiency)是機械裝置性能優劣的評估指標之一，當機械效率越高，則能量損失就越低。下列哪一數值為機械裝置合理的機械效率？ (A)0.3 (B)1.3 (C)
• (14).sin(-x)=sinx(A)O(B)X
• 13. Which of the following descriptions is correct for KrBr+? (A) The electrons with highest energy
• 13. A 1.2 kg croquet ball moving at t2.0 m\/s is struck from bebind by the impulse force shown in F
• 14. Given that the Earth's radius is 6400 km, the escape velocity at the Earth's surface i
• 15. An LC circuit, as shown in the diagram, reaches a certain state a moment after being energized.
• 27. What amino acids utilize chorismate for their biosynthetic ingredient? (A) Trp, Asp, Phe (B) Thr
• 28. Regarding the binding energy generated from enzyme-substrate interactions, which statement is ac
• 29.Which of the following is not involved in signal transduction by the B-adrenergic rece (A) Cyclic
• 30. Regulation of cholesterol biosynthesis:(A) involves transcriptional regulation but not covalent
• 31. A marathon runner is engaged in a 20-mile run. During a 20-mile run, there is an increase in the
• 32.Which of the following statement(s) is incorrect regarding the formation of ketone body? (A) Acet
• 33. Which is a difference between integral membrane proteins and peripheral membrane proteins? (A) I
• 34. Which of the following represents the correct sequence of events in a cycle of β-oxidation begin
• 35. The C4 pathway for carbon dioxide fixation has what requirement compared to the C3 pathway? (A)
• 36. Which of the following statements about the oxidative decarboxylation of pyruvate in aerobic con
• 37. Which of the following statements about the citric acid (CA) cycle is correct? 1. The citric aci
• 38. A poison that prevents the transfer of electrons from the last iron-sulfur cluster of Complex I
• 39. Which of the following is an advantage of using multiple steps in electron transport? (A) By usi