我沒看懂B1的角度變化量怎麼出來的？ 也不太知道B1的角度變化量是哪個角？ 求大神指路🙏🏻🙏🏻

8. D ✓ 40 W = R. st == Vist R MW. 一顆電子在兩個不同量值的均勻磁場交界區交錯運動,其 運動軌跡如圖5。若由交界面的A點進入B2磁場區域,到 BX 達交界面B點返回B磁場區域,然後再到達交界面的C x ㄨ B ㄨ 點,重新進入B2磁場區域,若由A點移動到B點所需時間 B.x/ 與由B點移動到C點所需時間恰好相等,而電子由A點移 動到B點時,電子速度方向改變的角度為0,則這兩個磁場 ㄨㄨ 圖 5 量值的比值 B. B₁ 20 為多少?(註:0<<2z)&日二下 1 st. (A) tan. 4 (B) x=evB 2π mv R= (D) 2元 e -1 eB. 47 = mo eB =B AB (C) tan

想問滲透壓π=hd／1033.6atm的h單位為公分嗎

求解謝謝

6.如果要得到函數y=v2 cosx 的圖形,需如何平移y=√2 sin2x+ (單選) 1 0005 (1)水平伸縮一倍,再向左平移 TV 2sin2(+8) πT - 單位 2 8 1 πT (2)水平伸縮 倍,再向右平移 單位 2 4 πT (3)水平伸縮2倍,再向左平移 單位 4 (4)水平伸縮2倍,再向右平移 單位 8 (5)水平伸縮2倍,再向左平移 單位 8 4 d+(0)2000= 2=4 的圖形?

請問第25題為什麼不能選B🙏

of the United 全新試題 建國中學 鳳山高中 ◎第四段課文重點 (B) in show love for others (C) through TV programs. (D) upon 全新試題 (1)介系詞應用 (2)副詞應用 (3)名詞子句 23 23. Studying history (A) likes (B) dislikes traveling in time to the past; we can learn from the past and avoid making the same mistakes. 全新試題 (C) is like (D) is alike and achieve more. 新營高中 (C) farther (D) further (24. I ask you to keep climbing because you will see (A) far D③The 25. The plan change it. (B) fur we expand our business all over Asia sounds risky, so I think we should 全新試題 different (A) that 新試題 III. 綜合測驗 are very ※第一篇 峰高中 高中 (B) which (C) what (D) about which 1. to Established in 1984, TED is a nonprofit foundation that helps spread new ideas around the world. In the beginning, the foundation held conferences and invited thinkers from many different come and speak. Some speakers were experts and researchers in medicine. Others were knowledgeable 2. were highly respected giants in business. Each of them was given eighteen philosophers. minutes to present their ideas. The speakers' talks were filled with valuable and fun insights that often audiences with knowledge 3. entertainment. popular. 4. they did not really start a revolution of

想請問 第三張照片的x-5是表示什麽意思

範例 沒下 = 4x4 =16 > 21 <配合課本例題9、講義課後練習15 12 高一甲班有42 位學生,根據調查發現,暑假要參加數學研習營的同學有20位,要參加英語研 習營的同學有27位(兩種研習營的時間不同)。如果兩種研習營都要參加的同學有15位,試 問: (1)班上同學兩種研習營至少參加一種的有多少位? (2)兩種研習營都不參加的有多少位? 饮 AS 牌

為什麼第五題兩者不一樣

7 (3)若sin)>0且 cos < 0,則 (4) sin 361° = sin 1° ° (5) cos(-20°) == cos 20° 0 基礎題

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同樣一個問題，是要發幾遍？能不能先看詳解，真的不懂再上來問，當然不是叫大家去看詳解就好！是覺得各位的問題很白癡！真的不行就利用身邊的工具！

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求解

(A) We are expected (C) What is expected (B) It is expected (D) It will expect 2. Last year, the festival attracted many people, and the number of tourists is a peak on the day of the fireworks display. reported (A) that reached (C) to reach (B) to have reached (D) that has reached

求解

t- A 有機的 (A) decides (B) is decided (C) will decide (D) decided 5. Mrs. Pym doesn't trust the products sold in supermarkets; she only buys organic products from a family- (A) owning farm. (B) own (C) owns (D) owned 1 句子合併與改寫 (改寫成It is....)