［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

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...

708課綱適用 學測週計畫 Mon Wed Fri Thur Sat Tue 歷史 -名師聯合命題,突破學測逆境一 中和高中黃錦綾·图陽女中年·復旦高中史耀昌 意难中學陳秀珍,中山工商徐梅花·新北高中安後唯 師郭子儀·名 師劉欣·名 師陳警 8 8 填問卷 送歷屆 生回饋EASY拿好康 群情 扶摇》 个 考前14週 複習攻略 北中南各校名師試題,符合新台 全新混合題組與非選題,完整 題題詳解,非選附評分標準, 書末附精選學測素養題,輕鬆 附大考中心授權參考試卷與者 ISBN 978-9 e名師免費體驗30天 特價:230元

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

想請問45 在第三段後幾句 他說並不是全部人都買單 那不就代表他不夠popular嗎 那D選項為什麼對 還有46 b跟d明明超像吧？

66 學測週計畫‧英文 x } 分。 adi) T}; 第4至7題為題組 The fair-trade movement began in Europe in the post-war period, but it didn't draw people attention until the recent 25 years. According to its fundamental principles, fair trade 2 47.) w you were in the fai making trades fair to producers by having consumers from developed countries pay slightly problem mentioned ir (A) To place more adv for end products. The primary feature of the fair-trade system that distinguishes it from that of the open marke (B) To look for more (CL To lower the fees is the requirement of minimum prices paid for goods. Moreover, during good years, an addition (D) To reduce the hi amount of money is added to encourage and profit labor-offering producers. With financial aid purchasers of fair-trade products may help producers hire more adult workers, which can reduce he hiring of child labor. By paying more, they can also guarantee the safety of workplaces, and be farmers adopt eco-friendly fertilizers to protect the environment. However, although the fair trade system seems beneficial to farmers, and trades are on the increase, it actually leaves much room for criticism. For example, getting fair trade certification is expensive for small businesses and individual producers. They have to split their hard-earne money for being a fair trade member, which ends up being a burden for the poor producers that fair trade system originally urges to help. Such high administration fees inevitably lead to the result that products are sold at much higher prices which weigh on consumers. Hence, customer base around the world is limited, because not everyone is willing to pay extra fees when they can get products of the similar quality but with lower prices. Worst of all, the administration fees don't go to the suppliers but retailers. Although there are obvious advantages of fair trade system, its disadvantages are likely to form a vicious circle and may shrink the fair trade market, if the basic problem doesn't get tackled. 44 Which of the following is the best title for this passage? (A) The History of Fair Trade qobis (Bil How to Become Fair-Trade Producers (C) How Fair Is Fair Trade? DNThe Cost of Fair-Trade Practices Which of the following statements is NOT true about fair trade? og AT of a spire- (A) Fair-trade producers use environmentally friendly fertilizers. resembles B) All fair-trade crops are sold at higher prices in the market. on its ext (C) Producers have to pay for official proof of fair-trade associations. Cam the talles Fair trade products are popular and sold to every country in the world. To dow As 46. What is the correct order of the main ideas for the paragraphs 1-3? with aw TA) Fair trade and globalization 48 Acc (B) The time when fair trade began — The advantages of fair trade → The impact of fair trade api (C) The first fair-trade producer → The increasing sales of fair-trade products A consumers to farmers (D) The goal of fair trade system → The advantages of fair trade — The imperfection of fair trade p 第責部分 第48至几題為題組 As water is to p no beautiful decorat This list could go to the similar style structures in the w One great e British architect there are mainly to break this col this innovative concept of it i building elabc functions of w Anot 2 Also calle Piano, an It purposes like two fundan rise. T Da Totein gorofa obito Bol to do 14 → The cons of fair trade → The pros of fair trade 帥8% → The help of 49. TL

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