請問這題🙏🥺🥺

說明:第7題至第12題 ,每題5分。 7. 已知 tanx 在角度很小時(以弧度為單位),其值約為x,下列選項中,試選出運算 結果大於0.1的選項。 (1)sin / 元 To 13 (2) tan 140 (3) tan / πU tan 48° - tan 470 + tan 48° tan 470 (4) log0.91 0.9 (5)log1.1 tan 1.1° 0 154... 180°x- 1080° 二 180 7 X180°=108° 360 0.91=0.9 0 1+x 4

求解🙏

(A)磷酸鈣 (B)氟化鈣(C)碳酸鈣 (D)草酸鈣 (E) 無法比較。 zf C2+ + CO2 10855 45' S K2CD3→ 2K++ C03- 9.在1升之飽和碳酸鈷(CoCO)溶液中加入0.01莫耳之碳酸鉀時,可測量出溶液中鈷離子 Co²+之濃度會減為原有濃度的千分之一,問碳酸鈷的K值為若干?(假設碳酸銅 ~ S Sto.ol K,CO為強電解質,在水中完全解離) (A) 1.00×10-5 (B) 1.00×10-6(C)1.00×10-8 SD (D) 1.00×10-9 (E) 1.00×10-10 。 Frank tra

想問這三題答案🥲有點急🥲

A 卷 HA 高中物理(全) 基礎測驗 (占70分) l to sit by the window with handphone 班級 座號: 姓名: 2-3 物質間的基本交互作用 「尊重智慧財產 請勿拷貝翻印 得分 2 ■選擇題(含單選題及多選題,每題7分) ) 1.質量為24公斤的小孩,在木星表面的重量約為600牛頓,則質量72公斤的大 人,當其在距木星表面高度為2倍木星半徑處的太空梭裡,其受到木星的萬有引 力量值約為若干牛頓? (A) 100 (B) 200 (C) 600 (D) 1800 (E) 5400 2 有關自然界的基本作用力,下列敘述哪些正確?(應選2項) (A)多個質子可以穩定存在於原子核中,主要是因為質子與質子間存在著互相吸引 的萬有引力(B)太陽因為電磁力作用的關係,所以表面持續發射出電磁波 物 體在粗糙面上運動,受到摩擦力作用,使物體運動變慢,故摩擦力屬於萬有引力 (D)弱核力是一種距離極短的作用力(E)原子核中的中子不帶電,但中子與中子之 間仍存在著互相吸引的作用力。 ( ) 3. 右圖為地球的示意圖,其中L、L。兩條虛線分別是地球自轉軸與地 磁的磁軸,兩條虛線夾角為0,A、B兩點為磁軸與地表的交點。下 列對於圖中地磁的敘述,哪些是正確的?(應選2項) (A)A點稱為地磁南極或地磁S極(B)B點稱為地磁南極或地磁 N 極(CB點附近的磁力線方向由地球內部穿過地表,並射向地表上 空(D)0稱為磁傾角(E)0稱為磁偏角。 南半球 18

我這樣寫對嗎👀👾（八上文法宅急便）

(A) 18 【小試一下] (一)填充題 1. Before he eats pizza, he will wash 2. When I save enough money, I will take 3. After Joe knows about the fact, he Will everything about it. (二)翻譯填空 1. 在他來這裡之前,我會等他。 I will wait for him 2. 嬰兒一歲時,我將買給她一份可愛的生日禮物。 When the baby is one year old, I (W) will gift for her. 3. 完成她的自然功課後,她將打電動一小時。 •練習 She'll play science homework. (一)依提示作答 video games for an hour his hands. a trip to Japan for a week, call me up and tell me (C) V before he Come here. (B) buy A a lovely birthd after she finisher A A B F David will have free time tonight. (用 When 開頭合併為一句 ) He will go to a concert with Anna. When David have free time, he will go to a concert with 2. After Jim washes his hands, he will eat the pizza. (Before 翻譯 Anna Toni Before Jim eats the pizza, he will wash his hands. 1. 今晚吃晚餐後,我和我太太將在公園散步。(Mywife... will.... will...) My wife and I will go for a walk at park after dinner. 2. 這個週末有空時,爸爸將幫忙我的數學功課。(Dad will help with...) Toni Dad will help with my math homework when he has frec 學力模擬演練 單題(每題5分,共75分) 1. Mr. and Mrs. Smith did not know much about Taiwan when they beautiful island. this weeken 得分 ( ( to the (A) came (C) are coming (B) come (D) comes

想問大家這裡是不是應該用while she was gathering比較好？

表示把分散各地的人或 gathered in front of the headquarters. Toddlers were gathered around the TV to see Pororo. 可用句型: 棵老樹 (剛學會走路的幼童們聚集在戰 也可表 passed 看《小企鵝啵樂樂》。)或是 What were you doing while she gathered her belonging. 在收拾她的東西時,你在做什麼?)。 take to not analys 例如

想問這部分用一個小圓代表氫氣、一個大圓代表氧氣 ，是單純探討體積才這樣用的嗎？可是後面又出現了半個原子的敘述，是什麼意思呢？

l體積的氫+1體積的氯→2體積的氯化氫 + 2體積的氫+1體積的氧→2體積的水蒸氣 + 貝】 出現「半個原子」 與原子說內容矛盾 大口 圖1-10以原子說解釋氣體化合體積定律 Tom

第二個為什麼不能選what 要選that

en Ronald McL The Marshmallow Challenge is a popular team-building exercise. In this challenge, groups must work together to build the tallest structure that can support the weight of one marshmallow. 1. only dry spaghetti, tape, string, a marshmallow, and 18 minutes to finish the challenge, the teams must work quickly. The Marshmallow Challenge has been conducted with architects, lawyers, managers, and children. In one study, the group 2. built the highest structure was architects. However, children performed better than the other adult teams. Why did children do so well? First, they worked quickly (with m had been given to them. The adults spent more time planning, so they had less time to adjust their designs. Second, children collaborated to understand 4. to build the tallest structure. Adults wasted time 5. 5. a group leader.joyed mol of lasag In order to solve problems, we must Marshmallow Challenge helps people do that. collaborate and try new ideas. The

有沒有哪位物理大佬能幫我看看這題有沒有D或E選項

>F₂ (F+F₂)> mg 。 二、多重選擇題(4題,每題5分,共20分) A-C (2) 1. 如右圖,將密度均匀、重量為W的鐵鍊懸於水平天花板 下,已知左右兩端懸掛處鐵鍊和天花板的夾角皆為 6370 3706 6 37°,則鐵鍊: S COSE (A)左端的張力量值為- W 1370 (B)右端的張力量值為- W 5. 1370 左 37° 3700 (C)右端張力的水平分力量值為左sin37P+To sin37°=w (D)最低點O在鐵鍊內部,其張力量值應為零 (E)最低點O的張力量值為 W。 3 2x 3 = w 品 =W +1=W T= {w

請問這要怎麼判斷？答案是CE

12. 下列關於常用對數的敘述哪些正確?(多選) (A) 常用對數值增加1,則原始值增加為2倍 (B)若loga=4.8,則a為4位數 lat: 51t 1-512 (C)若loga=-4.8,則a小數點後第8位開始不為0-12 (D)若log(loga)=3,則a為1000 位數 16942 19 To (E)若loga=4.8,logb=2.8,則ab的100倍。

請問接下來要怎麼計算？ 求解釋

例題 化學計量 7 MnDx 00 HCl 使足量的二氧化錳與0.1M 的鹽酸500毫升加熱作用,反應式為: MnO2(s) + HCl(aq) → MnCl2(aq) + Ch(g)+H2O(l)(係數未平衡),所得的氯氣在標準 態下的體積為若干?(標準狀態下,氣體的莫耳體積為22.4升) (A) 0.28 (B) 0.56 (C) 1.12 (D)2.24 (E) 4.48。 答 14 - 1 12 園 (S)OM+ (9) HK$ se fom 0.1 Jom 21.0- loce 25.0 Tom 2.1