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3. 以相同的速率不同仰角作兩次斜拋,其最大高度分別為 4√hihz 15 30 45 60 75 90 仰角(度) hi 及hz,且水平射程相等,則此水平射程大小為多少? -Ath tit fits the Mah t th pir + 18 10-23 1 44=4x-x

英文,文法,關係代名詞, 選擇題並解釋,應該是選出英文句子中,文法錯誤的選項位置1,2,3,4: 1 [Like] Christian art, which influences people 2 [to have ] religious feelings, the goa... 繼續閱讀

為什麼過量而不沉澱的是Al而不是Cu

答 解 例題 11/ 離子之分離 CHOJIA (HO) 某一溶液含有 Nat、Ag+、Cu²+、Ba²+、AI+五種離子,進行下列檢驗,試寫出沉澱物 化學式。 HCI -沉澱AHO O.H HS 溶液 沉澱 B -濾液 過量 NaOH O.H THE NUS -沉澱 C HNO, - 濾液 -沉澱 D WW H2SO4 -濾液 PARARE 130A - -濾液 A: AgCl ; B = TollOLD; C: Al(0x173 ; D: Ba584 Cu(OH) 9 A1+ (aq) NaOH NaOH 811041)3(5) → 過量 Al(04) 4 (aq) HINDA Alons 8 含有 Ba²+、K+、Cu2+、Mg2+、Ag+離子的水溶液,依下列te.com 5.

想問這一題

一等比級數之比,前n项和Sn=48,前2n 項和 Szn = 60,則前3n項和Sam= 63: λ= 解 V # 若 答:63,3 Sn. Son-Sn S3n-Son 國 D 36 48 12.x-60 48 3 6. 144=48x-2880 288 288000 48 S 3024 = 481 48/3024 288 The *

想問32題

ar C People of all ages all around the world have been touched by Walt Disney's works and inspired by his rags-to-riches story. His own road to success A29 the positive message the company has been sharing with its fans repeatedly: Never give up on a perfect example of your dreams. 30 drawing as a boy and founded he was faced with Born in 1901, Walt Disney developed a passion the Disney Brothers Cartoon Studio when he was twenty-two. 31. many difficulties and failures along the way, Disney didn't lose faith. One day, a sudden inspiration struck him. He created a joyful little character, Mickey Mouse, that saved his shaky career and helped him build his entire fantasy kingdom. In the years that followed, Disney Studios completed popular animated film after 32 countless iconic characters. 動畫電影 32 If Walt Disney were alive today, he would warmly reassure you and introduced that your achievements depend on your 33 and willingness to keep trying. He would also tell you that sometimes the key lies within your most unexpected daydreams. If you can dream it, you can do it.

（第一張照片）守恆的概念是沒問題的，但換符號好像有點問題，mg是怎麼換成mV/r的？？？還有a是怎麼換成V^2/r的？？？感覺是我前面換算學得不太好的關係🥺 （第二張照片）想知道c選項的算式是怎麼來的？

範例3 圓周運動的力學能守恆 雲飛車是一種常見於主題樂園中的遊樂設施, ao 其軌道通常有如圖所示的迴圈。若考慮正圓的迴 圈軌道,且軌道可視為在一鉛直面上,雲霄飛車 的車廂在沒有動力驅動之下,沿著軌道內側繞行, 且軌道只能提供向心力,摩擦阻力可忽略,重力 加速度為g,則當車廂可沿整個圓圈軌道繞行時,車廂在軌道最低點的加速度量值至少 為何? (A) 2g (B) 3g (C) 4g (D) 5g (E) 6g 向心力: V₁ F=mg= m JJR VH R + a₁ = JEJR (JSJR) R V₁ R 1=5g A.0) 願選一條長為R的繩子綁住一個石塊,讓石塊一開始在鉛直面上作圓周運 動,石塊的位置可由石塊—圓心連線和水平線夾角表示,如右圖所 Mo 示。若石塊在最低處的速率改為 7gR g為重力加速度,則石塊轉 2 到何處時會脫離如圖所示之圓形虛線軌跡?(已知sin37°=0.6) (A)=30° (B)=37° (C)=45°(D)=53°E=60° R my mg cose 79R 2 ① 力学能守恆 /m() :/mv+mgal1+sine) myR 2 → v² 1 gk (3-4 sino) ② 圓周運動(向心力:張力、動) T+ mg sino - V = 1mg (3-4 sino) →繩鬆⇒7:0 →脫離:與最低點高度差h " R+R Sind ⇒ 0+mg sine = 1 mg (3-45/40> : R(1+ Sine) => sino 0-300 【107. 指考】

求解

依 THE 6從0.1.2.2.3.3.3.4.5數字堆中:則: (1)任意取三個相異之汉字.可排放個三位权 (2)承第(小小小題,这些三位权中,有個3的倍权 (3)任取4個权字排成4位权,可排成 個4位权 DATE.

求解第二題

10.一盒中有10個球,球上分別印有號碼1,2,3,4, ****** 10,試求: (1)由盒中一次取4球,則4球之號碼中第二小數目是5的情形有幾種?(5分) ②由盒中一次取4球,則4球之號碼恰2個連續自然數的情形有幾種? (1) 如:(1,2,4,7),(3,5,7,8),(2,5,6,9)(5分) -5 4x C2 = 40 (2) 12345678910 (1.2)、(9.10): other C2x2=42 C₁₂ x7 = 105 9組 42+105-2組連2 = 147-C2

求解第2、7題

10% Can money buy happiness? People have always wondered 1. money really makes them happy. Researchers used to believe that it is up to a certain point happiness increases with income: beyond an annual income of $75,000, people are no happier with higher salaries. 3., recent studies have indicated that happiness still increases when salaries are higher than $75,000. The main reason that money seems to bring happiness is 4. more money can bring greater financial security. Daily activities such as grocery shopping are easier when most of the anxiety regarding what 5. is removed. In this way, money could be viewed as a solution problems. 6. one's on individual Most studies related to this question are based on averages rather than experiences. 7., there are many exceptions to the rule that happiness increases with 8. making $25,000 per year. By contrast, one's income. Some people are satisfied others feel that millions of dollars are required 9. their desired lifestyles. Compared with averages, the individual items that people spend their money on may be truer measures of happiness. A few studies have indicated that people are happy 10. they spend their money on specific items. This suggests that although having all the money in the world may not make you happy, it would give you more choices in purchasing the items you want. Such choices could surely increase one's happiness. anw spalliv siff (D) whether ) 1.(A) where (B) who (C) what (A) 2)(A) that (B) when (E) how (D) which (A) 3.(A) However (B) Thus (C) Similarly (D) Moreover (C) 4.(A) who (B) why (C) that (D) where B) 5. (A) can one afford (B) one can afford (C) does one afford (D) can afford one 6. (A) to (B) with (C) for (D) in 7.(A) Finally (B) In addition (C) Therefore (D) For example 8.(A) on (B) to (C) by (D) with

請問這幾題怎麼解 第一題在物理歷屆看到 化學也看到 這算跨科嗎 還有素養題通常都一定要讀完才能解題嗎？有沒有什麼隱藏方法

3.西元1808年,道耳頓提出原子說,主張物質是由原子所組成,其後,亞佛加厥提 出分子的概念。然而原子與分子到底有多大?究竟1克的氫氣有多少個原子?用現 在的說法,1莫耳的原子或分子是多少?這個問題,早已由美國著名的政治家也是 科學家富蘭克林,在西元1773年寫給朋友的一封信中提及。他曾將1茶匙的油倒 在湖面上,發現油會迅速擴張,直到蓋住約半畝的湖面就不再擴張了。 假設油分子的形狀是正立方體,此實驗中1茶匙油的體積約為5.0立方公分,半畝 湖面的面積約為2.0×10平方公分,油的密度約為0.95克/立方公分,回答第(1)~ (3)題。 (1)假設覆蓋在湖面的油層只有1個分子厚,代表油層的高度即為1個分子的大小, 2(1A=10-8cm) 25月 則1個油分子的大小約為多少?(1Å=10-8cm) (112)苹(A) (12) JAR (A) ( PA (2)湖面上約有多少個油分子? (A) 1020 (B) 1021 (C) 1022 (D) 1023 (E) 1024 8 。 她有莫產臭(8) (3)假設油分子的質量為每莫耳200克,根據富蘭克林的觀察做估算,下列何者 最接近莫耳油中所含分子的數目? $3 (A) 1020 (B) 1021 (C),102 6.02X10 (D) 1023 (E) 10240 1200 二() 禮拜莫麵品 一聲再見面包 【91 學測補考】 比較之下四個例之中質量的大小。(田 2個NO分子、(7)2個水分子(丙)