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20. A uniform plate of mass M is placed on two fast-rotating identical wheels of radius r. Thecoefficients of kinetic friction between the plate and both wheels are μ, the distance between thecenters of the two wheels is f, the wheel on the right (left) rotates counterclockwise (clockwise)with angular speed w (see Fig. 5), and the gravitational acceleration is denoted g. If the masscenter of the plate is displaced by d from the center of the two wheels, what is the frequency theplate oscillates with? (Assuming the plate is so heavy that it always stays on the wheels.)edr r2wlMgFigure 5. A plate of mass M is placed on two rotating wheels making an oscillating motion.wd 2ugd(A) ω (B) (C) (D) 2µg

19. As shown in Fig. 4, an m1 = 1.0 kg block is placed on top of an m2 = 8.0 kg block, which lieson a frictionless surface. The coefficient of kinetic friction between the two blocks is 0.20; theyare connected via a pulley and a string. A hanging block of mass m3 = 6.0 kg is connected to themass m2 block via another pulley and string. Both strings are massless and the pulleys arefrictionless. What is the acceleration magnitude of the blocks? (Gravitational acceleration g =9.8 m/s²)m1m2M3Figure 4. A system composed of three blocks, strings, and pulleys.(A) 3.7 m/s² (B) 2.7 m/s² (C) 9.7 m/s2 (D) 8.0 m/s²

18. The effective resistance from a to b in Fig.3 is 4.0 2.What is the resistance of individualresistors in the circuit? (The resistances of all the individual resistors are the same.)NZRa R bR RFigure 3. A circuit composed of 5 identical resistors that effectively work as a 4.0-Q resistor.(A) 4.02(B)2.0 Ω (C) 8.0 Ω (D) 0.8 2

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2.有關肺水腫病人的呼吸特性之敘述,下列何者錯誤? (A)肺會喪失很多彈性,增加空氣進入的阻力(B)呼吸淺快,呼吸功會因而減少(C)病人會感覺呼吸困難(D)病人看起來會很喘

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40 下列何者不是研究報告撰寫的倫理規範? (A)發表研究結論前須通過研究對象審核 (B)詳細註明報告當中引用的資料和文獻 (C)避免只呈現對研究者有利的研究結果 (D)仔細說明研究的程序和資料收集方式

166. Who is Jackson Avery? (A) An employee in charge of vendor communication (B) The CEO of PrintFast (C) A graphic designer (D) A customer service representative

167. What is the outcome of the discussion? (A) The launch date will be delayed. (B) The team will accept the orange boxes. (C) The design team will create a new logo. (D) The supplier will reprint the boxes immediately.