想請教這四題 謝謝🙏

0000) 600) 42.光滑斜面上放置A、B 兩物體,以繩子繞過滑輪相連而呈靜止,如右圖(二十二)。 BÚ 其中A 的質量為2 kg,B 的質量為 3 kg,斜面的高度為0.5公尺,若不考慮繩重及 摩擦力,則B 沿斜面方向產生的加速度為多少m/s?(g=10m's')(A)1 (B)2 (C)3 (D)4. DC · 43.承上題,繩子間的拉力為多少牛頓?(A)6(B)7 (C)8 (D) 9 44.如右圖(二十三)之電路,電池的電壓E,R為未知電阻,R. 大小為 202,Rx B 為一可變電阻,當R為102 時,I電流大小為2A;Rx為302時,電流大小 為1A,則電池之電壓e為多少伏特? (A)40 (B)60 (C)80 (D)100。 DA 46.承上題,當 I, 電流大小為0.5A 時,R､大小為多少?? (A) 40 (B)50 (C) 60 (D) 70。 20-05A xw A -2公尺 圖(二十二) ex stodo B 1公尺 圈(二十三) R (X+1₂) = (x+1-²5) X3²A, 13:21

想請問43題為什麼是(D)？看了詳解還是不懂希望大神幫忙解題～（這是106學測題！）（看題目的時候會一直圈有點亂請見諒(^^;;）

41-44題為題組 Dognition will help you learn more about your dog's cognitive traits. It offers an online test Is your dog an Einstein or a Charmer? For US $60, a recently-founded company called telling you about the brain behind the bark. Dognition's test measures a dog's intellect in several aspects-from empathy to memory to reasoning skills/ But don't expect it to measure your pet's IQ.) Dr. Hare, one of the venture's co- founders, says a dog's intelligence can't be described with a single number. Just as humans have a wide range of intelligences, so do dogs. The question is what type your dog relies on more. After you plunk your money down, Dognition's website will take you through a questionnaire about your dog: For example, how excited does your dog get around other dogs, or children? Do fireworks scare your pup? Then, Dognition guides you through tests that are as fun as playing fetch or hide-and-seek. At the end, you get a report of your dog's cognitive profile. Your dog could fall into one of nine categories: Ace, Stargazer, Maverick, Charmer, Socialite, Protodog, Einstein, Expert, or Renaissance Dog. That can give you something to brag about on Dognition's Facebook page. It also can shed new light on why dogs do the things they do. For example, a Charmer is a dog that trusts you so much that it would prefer to solve problems using information you give it rather than information it can get with its own eyes. Dognition helps people understand their dogs in ways that they have never been able to do. This new understanding can enrich the relationship between dogs and their owners. B 41 What is the third paragraph mainly about? (A) The theory behind the questionnaire used in the Dognition test. (B) The procedure for evaluating a dog's intellect on Dognition. D The products one can get by paying a fee to Dognition. (D) The characteristics of the activities Dognition offers. 又 42. According to the passage, which of the following statements is true? (A) Different dogs display strengths in different intelligences. BA dog's cognitive profile is composed of nine cognitive skills. The purpose of Dognition's testing is to control a dog's behavior. (D) A dog's intelligence can be ranked based on the score of a Dognition's test. K 43. Which of the following is closest in meaning to the word "venture" in the second paragraph (B) Risky attempt. (D) New business. (A) Creative measurement. 53% (C) Non-profit organization. 569 29 xyzcd.

想請問D的解釋

凡尼爾(C. B. van Niel,1897 ~ 1985)於1920 年代證實綠色細菌、紫硫菌與綠硫菌 在光照情形下,可將硫化氫(HS)氧化成硫(S)[式1〕。他也發現紫硫菌等細菌可氧 化某些有機化合物,以作為氫的提供者。與綠色植物光合作用的反應式〔式2〕相比之下, 凡尼爾推論光合作用所產生的 O, 來自水而非二氧化碳。魯賓(Ruben)等人於 1941 年用 同位素分別標定 C'°O, 與 HO 進行實驗,證實此推論為正確的。 200 (g),00 EX_2H,S + CO,→2S + (CH,O) + H, .... (式紫硫 式2 綠 2H₂O + CO₂ → ₂ + (CH₂O) + H₂O........…... (式2) 全部中 類似以同位素標記的方式也可用於解釋「酯化反應」。酸和醇在催化劑作用下,究竟 是酸提供-OH 與醇提供-H化合成水,還是酸提供-H與醇提供-OH 化合成水呢?以乙 酸與乙醇為例,若以氧的同位素 O,標記乙醇分子中的氧原子,使之成為CH, OH,則 合成乙酸乙酯的反應〔式3〕就能看出端倪了。 Et se- 02 18. |18. 18. CH₂COOH + C₂H. "OH →CH.CO........................................... BEA (SAVE 2 45.有關光合作用的敘述,哪些是正確的?(應選2項)(2分)出底中面具(辦 (A)光合作用皆會產生O 2、日、美、(B) 光合作用皆會消耗 HO 716 C (C)HO 為氫元素的提供者 (WHO 經氧化產生 0 (E) HO 的氧元素形成醣類的氧元素 原泡酒佳人 AADTOTTODATODOA A

請問這題為什麼是C?求解🙏

月 日 第1章 直線運動 23 12 右圖為一物體沿一直線移動之加速度(a)與時間(t)關係圖, 已知第6秒末時物體之速度為+30m/s,試問該物體在第6秒 到第 10 秒內,共移動幾m? (A) 40m (B) 80m (C) 200m (D) 400m a (m/s²) 101 11164 Todo lotte O 6 10 t(s) 向柱焊中

為什麼這裡用using 第19題

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想要請問標螢光黃的部分 這一句詳解的翻譯是 「年輕遊客將會“獲得更多”，如果將注意力集中在不超過九件物品。」 想問的是這裡的get out of是翻成什麼意思 我想說get out of不是比較負面的意思像擺脫…嗎？ 非常感謝！🙏🏼

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請問此題怎解？？

(C) 17、 籤筒內有若干支籤,分成「中獎」與「不中獎」兩類,每支籤被抽的機會均相 等。若有甲、乙、丙、丁、戊共五人依序抽籤,抽完後籤不放回,已知五人在 631 5 則甲、乙、丙、 8 3 14 各自抽籤前計算自己中獎的機率分別為- OBTE SHERI THAFUCHEFFEFFEndrenderADOOOOOO 3. Kunhe PATKANPERI 丁四人中哪一個人抽到中獎籤? taurimäraturiidiCONHECENDOercedades (A)甲 Tuntutacapier.com (B)乙 JEMMEOra (C) TODOS AUCTORITAT mmmmmer NAVAL THEAT QUET EXTR TUMORITUKmani www.phamvan Ravzapr JEPENDENNAPIGEONILIC COPIFICIO mawaran HEROESTRU www THEU PET 17

請問這種題目，是要求什麼呢？⭐️

,有最小値 有最大値 課本例則 學生演 10) 老師講解 二次函數的極值 已知函數f(x) = x² + 4x+k的函數值有極值為 已知函數f(x)=-3x² +18x+k的函數值有極 3,試求k之值。 值為10,試求k之值。 26+ (哭二 (x+2)*+K-4 (x+2)² X=-2 f(-²)=4-81k-3 |K-4:320A- x=7 交美味鹹 福一站交部x 函數圖形 配合課本例題8 學生演練 走 巫師x與彩 2 −3(X-3)+K+27 5. 中共)0=3+ f(3)=9+12+K=10 21+k=10 度與 METODO ELRING S x=3 020 K=4| : 異音 (1) 財寶同時即兩音x:00(S) 鹹寒、煌實x:0>()()

［理化-力］想請問13 14題的答案（應該不是A和B），謝謝

元里 (D)100公里 (3)若以100公克重的水平推力推動物體一段時間後,則摩擦力的大小應為多少? (A)0公克重 (B)50公克重(C)60公克重(D)100公克重。 (4)若在此物體上面加放一50公克重的砝碼,則欲推動此物體所需的外力大小至少應為 (A)50公克重 (B)60公克重 (C)75公克重 (D)90公克重。 題組:圖(一)中的物體為100gw 木塊,平放時至少須施力 50gw 才能拉動, 試回答13~14題: 100gw 13. 將系統直立如圖(二)所示,若欲使物體不會下滑,則接觸 面應產生多少摩擦力?(A)50(B)100(C)150(D)200gw。 100 gw Ben (4) 將系統直立如圖(二)所示,若欲使物體不會下滑,施力F至 圖(一) 少應超過? (A) 100 (B) 150 (C) 200 (D) 300 gw . 100 Td 【基測精選】 STTODO 1. 有一種高速列車是運用「磁力互相排斥使列車懸浮於軌道上」,以降低在行進時列車 所受到的某種力。上述的某種力最主要是下列何者? 【98】(A)列車所受的空氣阻力 (B)列車所受的空氣浮力(C)列車與軌道之間摩擦力(D)列車與軌道之間的萬有引力。

求解

列 率的影 伊和丁 t 小涵測定反應速率快慢,實驗操作如下: WZAUJ 步驟一:圖(一)甲、乙兩燒杯中均裝有20℃、0.1 M 的鹽酸 50 mL,再將兩份均為 10 g的碳酸鈣顆粒與粉末倒入兩 燒杯中,燒杯中物質開始反應時,天平如圖二所示。 步驟二:圖(三)丙、丁兩燒杯裝有 20℃、0.1 M 的鹽酸 50 mL 和 40 ℃、0.1 M 的鹽酸 50 mL,再將兩份均為10g的 碳酸鈣粉末倒入兩燒杯中,燒杯中物質開始反應時,天 平如圖(四)所示。試回答下列 29、30.題:三工」 ZA 中 TA 圖(一) 圖二 圖(三) 圖(四) )29. 圖(一)中,10g的碳酸鈣顆粒倒入哪一個燒杯中?圖 曰中,哪一個燒杯裝的是 20 ℃的鹽酸? (A)甲;丙 (B)甲;丁 (C)乙;丙 (D)乙;丁 )30. 待燒杯中的物質完全反應,步驟一與步驟二的實驗 操作,何者的天平會恢復水平狀態? (A)只有步驟一 (B)只有步驟二 (C)兩者皆恢復平衡 (D)兩者皆無法恢復平衡 TODO E 面為之