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物理 高校生

⑵が分かりません。 なぜcosθが出てくるのでしょうか。

これらを 方が測定に 抵抗 抵抗と 値測定の a), EN 電圧計 あり、 には電 実際の低 慮しな の両端の はいくら 抵抗値 内部抵 だけか た抵抗 Mizo Phys + ずっそ の拡 一流を ざい。 182) 図のように、4本の平行導線 A,B,C,D が鉛直に配 置されている。 A, Cには同じ向きに大きさⅠ [A] の電流が 流れ, B, D には A, Cと逆向きで同じ大きさの電流が流 れているものとする。 2図に, 導線 A,B,C,Dに垂直 な断面図を座標軸とともに示してある。ただし, 磁束密度 Bと磁界 (磁場) Hの関係はB=μH で与えられ,ここでは 真空の透磁率 μo=4×10-' 〔Wb/A・mまたは N/A2] を用い てよいものとする。 A 1図 A B Ou 0 -2a 3図 Ou (1) 解答欄 (3図) に磁力線のようすを描き, 磁力線上に矢 印で磁界の向きを示せ。 図 8 -a B Ø 2a (2) 2図の原点Oにおける磁束密度の大きさを Ⅰ, Mo およ び図中のα [m] を用いて表せ。 (3) A,B,C,D の電流配置は原点0の付近に一様な磁界 を生じる配置として知られている。 この磁界の向きを適 当に選んで原点 0 付近の地磁気の水平成分を打ち消すよ うにしたい。 2図でα=1mとしたとき, 打ち消すのに必 要な電流 I のだいたいの大きさを下から選べ。 ただし, 磁束密度で表した地磁気の水平成分の大きさ は3×10-5 〔Wb/m² または N/A・m] 程度とする。 [1mA, 10mA, 100mA, 1A, 10A, 100A, 1000A] (4) AがBとCの電流から受ける合力の向きを解答欄 (3図) に作図し, 矢印で示せ。 18 定の面ココ答 (1) (2) (3) (4) (5)

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理科 中学生

中3化学です 画像1では亜鉛板が溶け亜鉛イオンとなりその際に生じた電子と硫酸液中の水素イオンとが化合し亜鉛板の表面で水素が発生しています それに対し、画像2では亜鉛板が溶けその際に生じた電子が銅板の方へ移動し銅板で水素が発生しています なぜこのような違いになるのかが分かりません。

12-1編 化学変化とイオン 最高水準問題 013 金属板 (亜鉛板と銅板) 液体(硫酸銅水溶液と蒸留水), 硫酸亜鉛水溶液透析膜チューブ, ビーカー, 導線,プ ロペラつきモーターを使って実験を行い, 電池のしくみ について考えた。あとの問いに答えなさい。 (東京・筑波大附駒場高改) 〔実験〕 うすい硫酸を入れたビーカーを2つ用意し,それぞれに亜鉛板と銅板を入れた。 ( ① ) 板では激しく気体が発生したが, (②)板ではほとんど反応が起こらなかった。 〔実験2] 図のような装置をつくり, 次のア~カの組み合 わせで、プロペラが回転するかどうかを観察した。 (1) 実験1の文中の ( )に適切な語を入れよ。 ① [亜鉛板] ②[銅板] (2) 実験2でプロペラが回転した組み合わせはどれか。 アーカから1つ選び記号で答えよ。 [イ H 液体 ア 硫酸銅水溶液 イ 硫酸銅水溶液 ウ 硫酸銅水溶液 蒸留水 蒸留水 蒸留水 オ 金属板 A カ 硫酸亜鉛 水溶液 014 砂糖,塩化水素, エタノール, 塩化銅, 水酸化ナトリウム,塩化 ナトリウムの6種類の物質を用意し、これらを 解答 別冊 p.4 図 1 -金属板 B 液体 金属板A 亜鉛板 亜鉛板 鋼板 亜鉛板 亜鉛板 鋼板 L 金属板B 亜鉛板 鋼板 鋼板 亜鉛板 鋼板 鋼板 L

未解決 回答数: 1
英語 高校生

答えが合っているか添削して欲しいです🙇🏻‍♀️ 1.I(should have drank) so much coffee. Now, I can't sleep. 2. She (may have left) her smartphone at her office,... 続きを読む

Fill in the blanks using a Modal Verb in the box below. [Oct. 17, 2022] May/Might/Must/ Could/Can't/Couldn't / Should/Shouldn't / Ought to / Needn't + have done 1. I ( 2. She ( ) so much coffee. Now, I can't sleep. [drink] ) her smartphone at her office, Or perhaps she left it on the train. [leave] 3. The brand-new bicycle has disappeared – it ( T ( 4. I can't find my glasses. 5. How did she fail that exam again? 6. You ( 7. You ( 8. There is no apple juice left in the fridge. My kids ( 9. Do you think she ( 10. You ( ). [steal] ) them in my car. [leave] She ( ) very much. [study] ) the washing up as was going to do that tomorrow. [do] ) such a terrible thing to her, now she's upset. [say] ) it all. [drink] ) about the appointment? It's 9:30. [forget] ) Luke yesterday. He left Japan six months ago. [see] 11. What isn't John at work yet?" I don't know, he ( 12. My suitcase is too heavy. ) the train. [miss] T( 13. Oh, good! We've got milk. Mom ( 14. The bus arrived one minute after you left, so you ( 15. She ( ) there. Her car keys are still here. [drive] 16. You ( ) such a large house. Your wife would have been quite happy in a smaller house. [buy] 17. I( 18. You ( He's re angry with you. [ask] 19. Do you think you ( It looks quite yellow. 20. The cat has escaped! 21. He ( ) so many things. [pack] ) some yesterday. [buy] ) a cab. [take ) to the cinema, but I decided to stay home. [go] ) his permission before you used his computer. ) too much water to your plant? [add] I( ) the door open by mistake. [leave] ) to the shopping center. It's closed on Sundays. [go]

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英語 高校生

11番から21番まで答えを教えて欲しいです🙇🏻‍♀️

Fill in the blanks using a Modal Verb in the box below. May/Might/Must/Could/Can't/Couldn't/Should/Shouldn't/Ought 1. I ( 2. She ( she left it on the train. [leave] 3. The brand-new bicycle has disappeared - it ( 4. I can't find my glasses. 1( 5. How did she fail that exam again? She ( 6. You ( 18. You ( ) so much coffee. Now, I can't sleep. [drink] ) her smartphone at her office. Or perhaps 19. Do you [Oct. 17, 2022] to/Needn't+have done 7. You ( ) it all. [drink] 8. There is no apple juice left in the fridge. My kids ( 9. Do you think she ( ) about the appointment? It's 9:30. [forget] ) Luke yesterday. He left Japan six months ago. [see] 10. You ( 11. What isn't John at work yet?" I don't know, he ( 12. My suitcase is too heavy. I( ) the train. [miss] 13. Oh, good! We've got milk. Mom ( 14. The bus arrived one minute after you left, so you ( 15. She ( 16. You ( ) such a large house. Your wife would have been quite happy in a smaller house. [buy] 17. 1( ). [steal] ) them in my car. [leave] ) very much. [study] ) the washing up as I was going to do that tomorrow. [do] ) such a terrible thing to her, now she's upset. [say] He's really angry with you. [ask] think you ( It looks quite yellow. 20. The cat has escaped! 21. He ( ) so many things. [pack] ) there. Her car keys are still here. [drive] ) some yesterday. [buy] ) a cab. [take ) to the cinema, but I decided to stay home. [go] ) his permission before you used his computer. [add] I ( ) to the shopping center. ) too much water to your plant? ) the door open by mistake. [leave] It's closed on Sundays. [go]

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