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107年 - 2018彰化縣縣立埔心國中八年級107 上學期公民第二次段考(期末考)康軒#85578
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統計:
A(2), B(0), C(6), D(1), E(0) #2306662
詳解 (共 2 筆)
112初等上岸 Bill
B2 · 2022/09/16
#5613266
選項C當中"企業老闆等雇主"部分"應更正...
(共 46 字,隱藏中)
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10
0
謝政諺
B1 · 2021/06/30
#4851101
工會:工人組成的會議 保障工人權益
(共 19 字,隱藏中)
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0
0
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#2306664
1. Carts A and B have equal masses and travel equal distances D on side-by-side straight frictionless tracks while a constant force F acts on A and a constant force 2F acts on B. Both carts start from rest. The velocities vA and vB of the bodies at the end of distance D are related by (A) (B) (C) (D) (E)
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2. A solid sphere, spherical shell, solid cylinder and a cylindrical shell all have the same mass m and radius R. If they are all released from rest at the same elevation and roll without slipping, which reaches the bottom of an inclined plane first? (A) solid sphere (B) spherical shell (C) solid cylinder (D) cylindrical shell (E) all take the same time
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3. Cubical blocks of mass m and side l are piled up in a vertical column. The total gravitational potential energy of a column of three blocks is (A) 2.5 mg (B) 3 mg (C) 4.5 mg (D) 6 mg (E) 9 mg
#2306667
4. An ideal gas is allowed to undergo a free expansion. If its initial volume is V1 and its final volume isV2 , the change in entropy is (A) nR ln ( V2 /V1 ) (B) nRT ln ( V2 /V1 ) (C) nk ln ( V2 /V1 ) (D) 0 (E) nR
#2306668