［高二 平面運動］ 完全沒有理解向量啊啊啊啊 請教範例四的兩題 答案分別為1.8；2.4 BCD

範例 4 運動的獨立性 合 某物初速度為16.0 公尺/秒向東,若加速度為3.0 公尺/秒向南,求: (1) 4.0 EUPH AIZISZTH ox = Vot xi + sat+j = 16x4 â + *(-3)*16) =64â ->45 = 8573 3 (2)第4.0 秒末之速度量值 VRVo+at 16% î+ (-3)*4 9 = 16+ 12 9 = 20. (3)第4.0 秒末之切線加速度與法線加速度量值 答 >8 x-16=12. > 16 m/ 2 東 > "/南 口 行角 。 類題 質點在平面上運動,初速度5m/s,方向為向東偏北 53°,受向南4m/s 的固定加速 度,以向東為方向、向北為y方向,出發點為原點。有關2秒內質點的運動,下列 敘述哪些正確?(sin53°= 0.8,cos53°= 0.6) CA1秒末質點瞬間靜止 B1秒末質點達最北位置(G質點先向東北,後轉向東南 (D)質點向北最遠位移2m )質點全程向東位移了8m 10. 5 Vi - Voit atj ox=5i+$x(4)« - = 517 4x1j = 1 + (-2) ja 5X0953° 3 W OX= 5x+ '44) = 51-4x2j. = -2(x sy 51-8] + 5x2 + 2xl-4 10. 4 153 3 -2 4M/?. - 十 8

為什麼11題made後面是接replied而不是reply？😭😭😭

effect 2. Alcohol has a bad e hat is why drunk driving is promise forbidden 3. Before I tell you what really happened, you mus anyone else. 4. It was all your fault, so you have to take fullr 5. The witness told the police he had heard an a et to tell responsibility argument y. t between the couple that night. 6. This scientific paper shows the closer relationship P between PM2.5 and lung disease. stressful 7. The students were about to take a math exam, which was s 1 for everyone. h. breath 8. Emilia ran four hundred meters and was out of b emotional 9. High school students are often upset by e 1 problems. destroyed 10 The bridge was almost d yed in the earthquake. 蒂娜在網路上製作一支影片,感謝醫師和護士在她發生意外後給予的照顧。 Tina made an online video in appreciation of the doctors and nurses who took care of her after the accident. replied to 12 大家都知道空污的可怕,但似乎沒有解決之道。 . expert at/in We know air pollution is terrible, but there seems to be no solution ta it. 1. 新建的博物館有很多很棒的藝術品,所以一定值得參觀。 There is so much great art in the new museum, so it is surely_worth visiting T Idioms & Phrases 1. pick on 找碴,指責 RBA pick on + sb. Jane felt the manager was picking on her and decided to quit her job. 珍覺得經理在找她麻煩,於是她決定辭職。

求27解

(一) -9 Ell satse k = 1*-*+I + 127. 已知有理數、立滿堂+y(17+12、D=5+2.2,則數對(x,y)= ( ) ( 28. 下列各數何者是整數、有理數、無理數或實數,請將代號填入下列空格:

第七、八題答案？

og tent (n.) TER 4. he planned to open a shop in San Bn 5 a rough (a.) ex Francisco, he took many goods with him, og suddenly (adv.) as Vor 10 Bn wagon (n.) 2 [= 数量 PAA large quantity of canvas. He hoped to sell 6 材質 material for tents or wagon covers. Business, 其 however, was not 7 he had expected. 8 as NOTES he sat in a café in a small town, he had an idea. He saw a man with a hole in the leg of his trousers and 10 for the 9 realized what Californians 15 rough work they were doing-good, strong trousers! 4. 13 (A) Although (C) If (B) Because (D) Unless BEE 5. (A) including (B) included (C) being included (D) was including 6. C 7. (A) much (C) it the (A) as far as (C) as soon as 2. (A) One day (C) Someday (B) one (D) others 70.-R. (B) as good as (D) as well as 70... (B) Another (D) The other day D 88. A 9. (A) casually (C) regularly (B) frequently (D) suddenly 10. (A) needed (C) needing (B) need (D) have needed

請問畫線處那邊為甚麼是這樣算🙏謝謝！

2.愛因斯坦在二十世紀初提出了有名的質能互換理論,讓我們得知核反應所損失的質量, 轉變成了巨大的能量。今有一座核能電廠利用鈾-235 進行發電,發電結束後發現損失 700xZSon() 了0.07g 鈾-235。試算出其放出的能量,可以使多少座 50m×50 mx2m的游泳池瞬A 16 間沸騰?(設水池溫度25℃,1卡=4.2 焦耳) E-ma= hx15x9x10 (A) 2 子 (B) 4 ¥該可支入座 (kg 6.3x102 (J) = 1.5 (D) 12 (C) 8 M= 8 x V = goooky AH-msat 1.5x 10 call (E) 16 AnnyY)x 1x (00- 進階 游泳也;弟議 0.72 = x 105 g 1 7应,一石

求解

- 類題 5-11 在焦耳實驗中,兩重錘質量均為10 kg,下落的距離均為 2m,容器的熱容量為400 cal/°C,內盛1kg 的水,設重 鍾共升降 30次,不計热量的散逸,則水溫將升高, (A) 0.5 °C (B) 8.4 °C (C) 2 °C (D) 1.5 °C (E) 2.5 °C • 1 m m La 1

請問有人有這本書的解答嗎？ 買回來沒多久解答就不見了...... 有沒有好心人可以拍給我 （看是要上傳雲端然後傳連結給我，還是加我的LINE...) 有的人在麻煩你了...

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想請問第3題的第2，3個選項，謝謝

(1)1 (2) 3 4 (3) 4 (4) 5 同类目上女主了只 (5) 6 2. 畢業旅行的晚會上總共安排了6個不同班級的表演節目和4個不同社團的表演節目,着要求每 個社團表演節目之間至少有一個班級表演節目,關於節目順序表所有不同的排法,請選出正確的 選項。 (1) 25 x 4!x 6! (2) C3 x 4!x 6! (3)C x486! (4) C x4x6! (5) cl® x4x6! 二、多選題(占40分) 說明:第3題至第7題,每題有5個選項,其中至少有一個是正確的選項,將答案填入卷末之答案 欄中。各題之選項獨立判定,所有選項均答對者,得8分;答錯1個選項者,得4.8分;答錯 2個選項,得1.6分;所有選項均未作答或答錯多於2個選項者,該題以零分計算。 3. 設(x) = ax+bx+c 為整係數多項式,且(1)<0,若方程式f(x)=0 在區間 (1,2)中有兩個不同的 根。關於下列選項中的敘述,請選出正確的選項。 (1)a<0 (2340 +2b+c<-1 fin= atbtc Zo (3) 4a+b>0 f(2)=4atabte 70 (4)c的值可能為-1 (5)a的最大值為-5 sathyo (x+3)(x-4) cac-b-c ( (btc) 人一 13,5 2 Ţ <-b-e well brxx 号 573 122 918.97 ) 10-4 20-1 3a7b p 4. 關於下列選項中的敘述,請選出答案為 C' 的選項。 (1)設一個三位數的百位數為,十位數為y,個位數為2,滿足 <y<z的三位數個數 (2)由1到12的正整數中取出不同的三個數,其中任兩個不是連續整數的方法數 (3&件相同的玩具全部分給甲、乙、丙3人的方法數 Hs-C (4)將(1+N”展開式依降冪排列後第三項的係數CCLX) (5)有甲、乙、丙、丁、戊、己、庚、辛、壬等9個袋子,已知甲袋中 球,乙袋中裝有 球,丙袋中裝有3個班 6、

求詳解，感恩

1 2. 3 4. D) Basically, they go on voyage after voyage in search of an immense treasure buried somewhere by the King of the Pirates, Gol D. Roger. B C 閱讀測驗1 There he flies, turns, lands and—to da- a disaster is saved, by Superman. “Come on,” you roll your eyes. “That's NOT real.” But admit it -we LOVE superman. Since the debut of the prototypical superhero Superman in 1938, stories of various superheroes have dominated American comic books and crossed over into such other media as films and animations. Versatile as these super characters may be, they do share certain traits. We know the double-life secret that Peter Parker is Spider-man, Bruce Wayne the Batman, and Clark Kent the Man of Steel. The secret identity has a civilian job while the “super-me” puts on an eye-catching costume, or custom-made accessories like Wonder Woman's bracelets. We are concerned that the bad guys play tricks so as to hurt these protectors. Fortunately enough, our superheroes normally have a base to go for “restoration” to. The Batcave has everything the Batman needs. Isn't that great? Furthermore, these super icons may have some backups and do not always have to work independently. The Fantastic Four or X-men team up as they have common origins or sponsors. These super teams are like a marvelous circle. Nevertheless, there are downsides being a superhero. Credits are not always given as the Batman and Spider-man meet with public skepticism or outright hostility. A superhero may even lose control as the Hulk has an issue with his violent alter ego. We love to see the superheroes think big and achieve big. They for sure reflect what we are and what we want to be. In summary, superheroes are popular and iconic because they each represent a large part of a society's traits and values. Everyone can relate to at least one hero and villain, because those heroes are designed to show the best parts of society, and the villains represent the worst parts. 5 What can we say about the author's tone? (A) Angry. (B) Formal. (C) Harsh. (D) Relaxed. 48 主题5 藝文世界

請問「第五題怎麼解？

N- Why on [ (X7 IBN 設A為實數,ce gaa + 8.247a+3a=0怡有二實根,則: x H = 1 BON (A) a > 0 (Ba>-1 (C) a < 5 (D – 1 <a< 5 (E) - 3 sa<0. <a <a [26a+)40 at3a) 20 答:(B)(C) (D)(E)【南一中、雄中) 4 (9a that) - 282-12020 Satpa+420 2a 13at12o 1-21