問題詳情
70. 如右圖所示，A、B 兩物體質量分別為 2Kg與 4Kg，B 物受 F 拉力作用，設各接觸面間的摩擦係數均為 0.5，欲使 B 等速左移，則拉力 F 大小為下列何者？
(A) 2kgw
(B) 3kgw
(C) 4kgw
(D) 5kgw
(A) 2kgw
(B) 3kgw
(C) 4kgw
(D) 5kgw
參考答案
答案：D
難度：困難0.348837
統計：A(2),B(13),C(12),D(15),E(0)
內容推薦
- 10 v. to impose a tax or fine; to conscript troops(A) launch (B) soar (C) demonstrate (D) levy
- 8 n. pillow; soft padded object(A) cushion (B) variety (C) onus (D) humidity
- 5 adj. biased; dishonest(A) congruent (B) tremendous (C) unfair (D) quality
- 6 adj. positive; approving; likable; helpful; encouraging; desirable(A) temporary (B) quarterly (C)
- 2 n. traveling on a ship; sea voyage; sailing(A) cruise (B) array (C) productivity (D) season
- 9 v. to unite; to join; to come together; to become one(A) respect (B) source (C) bother (D) combine
- 7 adj. additional; extra(A) opportune (B) dependent (C) supplementary (D) significant
- 4 adj. wonderful; excellent; marvelous; grand; elegant; magnificent(A) subject (B) interior (C) nece
- 5 v. to exchange; to replace; to convert; to travel back and forth regularly (i.e. to work)(A) commu
- 下列敘述何者屬於代謝作用？ (A)肝臟將肝糖轉變為葡萄糖(B)氧及二氧化碳分子通過細胞膜(C)水分由根毛進入根部(D)細胞壁對植物細胞的支持作用。
內容推薦
- 9 v. to reap; to gather in ripe crops; to catch; to gather(A) harvest (B) travel (C) explore (D) occ
- 10392綠色植物製造葡萄糖的方法是 (A)光合作用(B)呼吸作用(C)氧化作用(D)蒸散作用。
- 10求最佳混凝加藥量試驗中，靜置後，應取燒杯中哪部分的水樣進行吸光度的量測？
- 7 v. to govern; to control; to determine; to decide; to decree(A) detect (B) drop (C) advert (D) rul
- 7 adj. major; chief; select; of the highest quality; excellent(A) pocket (B) prime (C) eager (D) per
- 10 v. to fail after starting well; to make a hissing noise which gradually fades into silence(A) com
- 10440醣類、蛋白質、脂質經人體消化後，分別轉變為何？ (A)葡萄糖、脂肪酸、胺基酸(B)脂肪酸、葡萄糖、胺基酸(C)葡萄糖、胺基酸、脂肪酸(D)脂肪酸、胺基酸、葡萄糖。
- 7 n. unit of time equal to one thousand years; thousandth year anniversary(A) opinion (B) resistance
- 8 adj. simulated; feigned; make-believe(A) late (B) interchangeable (C) effusive (D) pretend
- 2 n. indicator; something used to point; hand on a clock; clue; advice(A) automobile (B) pointer (C)
- 6 圖示內下標（2）為：(A)易燃性氣體 (B)有機過氧化物。(C)禁水性物質
- 圖(五)為理想之運算放大器電路圖，若 V1 = 1V，V2 = 2V，則下列敘述何者錯誤？ (A) I1 = I2(B) I2 = I3(C) I1 = IF(D) I＋ = I－
- 9 adj. immediate; quick; urgent; pressing; present; current(A) instant (B) environmental (C) pretend
- 10 adj. tiny; extremely small; trivial; petty; accurate(A) minute (B) traditional (C) meticulous (D)
- 2 n. act of enlisting or drafting new members(A) recruitment (B) mailing (C) integrity (D) continuit
- 7 v. to straighten; to flatten; to make even; to equalize(A) assort (B) content (C) level (D) sample
- 10522 小美買了一盒珍珠粉，懷疑裡面可能滲了澱粉。她可利用下列何種試劑檢測？ (A)碘液(B)本氏液(C)亞甲藍液(D)氯化亞鈷溶液。
- 5 n. textile; weave; structure; framework; construction(A) encounter (B) contract (C) monitor (D) fa
- 3 n. the practice of giving expert advice within a particular field(A) inquiry (B) consultancy (C) j
- 10 adj. careful; wanting to do what is right(A) sufficient (B) conscientious (C) common (D) efficien
- 8 v. to add(A) commute (B) sum (C) plan (D) cope
- 10559用顯微鏡觀察植物體某部分的細胞，發現這些細胞都是中空而細長，且一個接一個成為管狀，這些細胞的功能是什麼？ (A)用於保護植物體的表面(B)行光合作用(C)輸送水分與養分(D)吸收水分與養分。
- 2 v. to practice; to employ; to exploit; to treat; to consume(A) assume (B) get into (C) use (D) poc
- 圖(四)是電晶體 Q 驅動發光二極體 (LED) 的電路，若此電晶體當開關使用，輸入的電壓Vi 為5 V，則 LED 亮時，輸出電壓 V0的近似值為多少？ (A) 0 V(B) 5 V(C)
- 9 v. to produce; to design; to make; to manufacture(A) anchor (B) route (C) inflict (D) create