物理 高中 大約一小時以前 求解這題!! Ex3:如圖,在相同高度處,同時以 20m/s 之相同初速, 2007/3 1=2t lot = 20t 仰角30°拋出一小石子A及俯角30°拋出另一小石 答案:(1)2秒 (2) 20√3 m 1053x2=20√5 V = Vo+at 子B,求 (1)A、B落地時間差? (g=10m/s) {=vot+Iat (2)A、B二石子落地水平距離相差多遠? 101A 10. x B 20. 2 x=101-5t₁ = -1101+5+hi 待回答 回答數: 0
物理 高中 大約一小時以前 第二小題! P.61 例題5:(1)一物體自斜角30°的斜面底端,以仰角60°斜向上拋出,初速為vo,若物體可 落於斜面上,則自拋出至碰撞斜面歷時多久? (2)若改從斜面頂端則又如何? Wo 待回答 回答數: 0
數學 高中 約3小時以前 求解!三角函數好難想🥲 10 8. 如右圖,∠BDC=0、∠ABD=∠ACD=90°、AB=a、 BD=6,試以a、b、sine、cose表示CD 之長。 D 6. e 例題4延伸 B a A C 已解決 回答數: 1
地理 高中 約3小時以前 請問一下不是西部才是肉品生產區嗎?中西那一帶不是多種小麥玉米大豆之類的嗎? 17-18 為題組 ◎圖(10)為美國四個區域分區圖,表(1)為2010年與2018年美國四區的人口數變化 問: 表(1) 西 中西 東北 年分 2010 2018 分區 南 南 西 中西 114,867,066 124,753,948 71,389,719 77,256,225 66,974,749 68,308,744 55,380,645 56,111,079 圖(10) 東北 ABCD 第二 行业 50 待回答 回答數: 0
數學 高中 約7小時以前 想問紅筆的地方 為什麼第一個算式下來之後 常數會變-2 然後1/2還在? +範例4+ (配合課本p.64例8) 有一組數據x1,x2,..., Xs,其平均數為4,標準差為2。若將每筆數據減4再除以2得到新數據 -20,與標準差為 y1,y2,...,ys, 即 y=2 x; — 4 。試求新數據的平均數為 解18 。 14F 4, 04 = 21 α = = b = -4 My =÷x4-4 = -2 yi =+xx-4 07-14/x2-1 尚未解決 回答數: 1
數學 高中 約7小時以前 請問第三行的算式是怎麼變成第四行箭頭的那個算式? 083 +55=440 +範例12+ (配合課本 p. 36隨 10 ) nuntl)(nte) 試求級數1/4(1+2)+(1+2+3)+...+(1+2+3+...+n)的和為6 3 b 解。 Ak= 1+2+11 + 1 = k(+1) +2 + 2 (17-2=-111+1²) + (1+2+11 +) 111+ (+) (173 +3²) (1+2+3) 解 2 n(n+1)(2n+1) b n(n+t) ] = 2 \x hint) x (2n+1 + 1) = x minti) (2^+1+1) n(n+1) 2n+4 _n(n+1)(atz) 3 6 尚未解決 回答數: 1
英文 高中 約11小時以前 第九題不是主動嗎,為什麼是+ed HOZZJ that pa change Angela Duckworth, an American scholar, gave a TED Talk in New York entitled "Grit: The Power of Passion and Perseverance." The ideas in her talk were later made into a book with the same title, 3. was published in 2016. 4. years earlier, Duckworth accepted a job as a mathematics teacher at a public school in New York. Her talk details how 5. the years, her students gradually taught her that to be successful, natural intelligence alone is not enough. One must also possess what is 7. by a strong determination to known 6. grit. Grit refers to consistent effort achieve a goal. Through detailed research, Duckworth discovered that people with high levels of grit remain highly motivated to achieve their goals 8. giving up on them. In other words, someone with true grit will see himself or herself getting closer to his or her goal day by day. Therefore, that person will always be able to keep himself or herself 9. to achieving that goal. Duckworth's TED Talk and book have since book have since inspired millions remained on The New York Times' bestseller list for almost half a A 10. Her boo following its t a year publication./leave/find +0+ (1. (A) what 學士廟讀 高檢眼 (B) which (C) how CDB (B 2. (A) So (B) (A) 3.(A) which (B) it (C) that (D) 4.(A) Few (00 (B) Little) (C) A little (D) 5.(A) with (B) around (C) until 6.(A) by (B) 7.(A) drives (B) for (C) as tedi. (B) driven (C) driving (A) 8. (A) instead of 9. (A) dedicate (B) dedicating (B) regardless of (C) except for such 這樣的: (C) very (D) same (D) 9gbird) and insinu (D) A fewsl (D) over (D) to be (D) to drive (D) in addition to (D) why HTA. 197 OT (C) dedicated (D) to dedicate 10.(A) in turn (B) around the world 新人会画画 香取湖小匙 (H (C) on their way (D) around the corner 六、文意選填:10% WN (A) worthy (B) discuss (C) technological (D) with (E) increase (F) audience (G) speaks of (H) as well as (I) celebrity (J) by From the beginning, before a word is spoken, it's clear that Molly Wright's TED T mits in a high chair. A little girl walks out, smilin 2 weak pho ask chi 已解決 回答數: 1
數學 高中 約20小時以前 高一下 4-1三角比 算了一半不知道該怎麼辦了 急 1-sin e Cos k 7.0 為銳角,且滿足 + ,則之值為 Cos 1-sin cos cos US 配合課本 解 左右同乘cos 2819 27 1-sine + 1-5ino Jubli sind 1-tsing 尚未解決 回答數: 1