110年 - 110 中央警察大學_碩士班招生考試_鑑識科學研究所：自然科學#102947

科目：研究所、轉學考(插大)◆自然科學與新聞 | 年份：110年 | 選擇題數：0 | 申論題數：16

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所屬科目：研究所、轉學考(插大)◆自然科學與新聞

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申論題 (16)

⑴2.35+0.576+8.0021

⑵15000-80

3.76×4.555

⑷10.622÷2.0

(5)(0.45×10.66)+15.88

⑴乙醇與酸性重鉻酸鉀

⑵汽車引擎不完全燃燒（以辛烷表示）

⑴請計算攝氏溫標與華氏溫標在哪個溫度下二者相同？

⑵若某金屬尺之線膨脹係數α=2.0×10-5/℃，若該金屬尺在常溫下（25℃）長度為2.5000公尺，則在夏天豔陽高照（42℃）下，計算該金屬尺之長度？

四、一行人以7.0 m/s 之速率追趕一輛公車，當他距離該公車20m 處時，公車以1.0 m/s2 的等加速度駛離，請計算並作距離－時間圖，說明該行人有無可能追上該公車？

五、請以色胺酸操作組（trp Operon）為例，說明原核生物基因表現之調節？

六、Please write the balanced equation, total ionic equation and net ionic equations for the precipitation of magnesium phosphate from the addition of a magnesium nitrate solution to a sodium phosphate solution.

七、The spring constant between the oxygen atoms in is around 1180 N/m. Calculate the angular frequency and the vibrational frequency of O₂ molecule.

八、When photons interact with molecules, two types of scattering can occur, please define these scatterings in detail and describe where you can observe them in nature.

九、Why does a solution containing a greater amount of Yellow Dye No. 5 appear darker yellow than a solution that contains a smaller amount of the dye?

十、Why are the calculations of frequencies of genotypes or DNA profiles based on the Hardy-Weinberg principle likely to be underestimated?