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  1. θ(t) = 240t & minus ; 21.5t^2 & minus ; 1.30t^3 θ'(t) = 240 & minus ; 43t & minus ; 3.90t^2 θ''(t) = -43 & minus ; 7.80t (a) θ'(t) = 0 -> 240 & minus ; 43t & minus ; 3.90t^2 = 0 t = 4.075 s or t = -15.1 s(rejected since t&...

  2. ...磁力單位係 : 磁通量(Wb)(韋伯) V·s = kg·m2·s& minus ;2·A& minus ; 磁通量密度、磁感應強度(T)(特斯拉) Wb/m2...

  3. ... on the boy is gravity, the acceleration should be -9.8 m/s. We put minus sign in front of 9.8 because the gravitational force always accelerate an object in a downward...

  4. ...歐幾里得空間R3的三個向量(1, 0, 0),(0, 1, 0)和(0, 0, 1)線性獨立。但(2, & minus ;1, 1),(1, 0, 1)和(3, & minus ;1, 2)線性相關,因為第三個是前兩個的和。

  5. ...電容 亨利 H 電感 西門 S 電導, 導納, 磁化率 = Ω& minus ;1 庫侖 C 電荷, 帶電量 歐姆·米 Ω · m 電阻率...

  6. 1. The beta decay (β衰變) is a "beta minus "(β-) one that produces a high energy electron (高能電子) and an antineutrino...

  7. ...viewtopic.php?topic=16937 - 26k - [PDF] sin( ) E E k y wt = & minus ; uv uv v uv檔案類型: PDF/Adobe Acrobat - HTML...

  8. ... female EER plus milk 1st 6 mo energy output minus weight loss 2,698 (16 y) 2nd 6 mo 2,768 (16 y...

  9. ...參考:http://upload.wikimedia.org/math/e/c/4/ec44b6f315913d6d6eb9964852e6f07e.png 5.39121(40) 10 & minus ;44 秒 5.39121(40) 10 & minus ;44 秒 其中:其中: 圖片參考:http://upload.wikimedia...

  10. Disposable income is gross income minus income tax on that income.[1] Discretionary income is income after...

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