問3で、導体棒の速さが一定値になった時の速さvを求めるのですが、解答では力のつりあいを用いていました。私は電流0として解こうとしましたが、vが0になってしまいました。電流を0として解くやり方はダメなんでしょうか？

もう一回とく 糸の固定点 ばね A d 0; 図1 0 B Ⅱ 図1のように, 十分に長い導体のレール abとレール cd が, 水平面と角度を なして間隔Lで平行に置かれている。 これらのレールの上には,質量mの導体棒が レールと直角になるように置かれており, レール上を滑らかに移動できる。 また, ac間とbd間には,それぞれ抵抗値 R, の抵抗 1 と, 抵抗値 R2 の抵抗2が接続され ている。 さらに,二つのレールが作る平面と垂直上向きに, 磁束密度Bの一様な 磁場がかけられている。 以下の問1~5に答えなさい。 解答の導出過程も示しなさ い。 必要な物理量があれば定義して明示しなさい。 ただし, レールと導体棒の電気 抵抗, レールと導体棒の接触抵抗, およびレールと導体棒に流れる電流で生じる磁 場をいずれも無視してよい。 (配点25点) 問1 導体棒がレールと平行に下向きに速さで動いているとき, 抵抗 抵抗2 に流れる電流の大きさをそれぞれ求めなさい。 また. 抵抗1 と抵抗2に流れる 電流の向きが, それぞれa→cとc→a, bdとdbのどちらであるか答 えなさい｡ 問2問1の状況において. 導体棒にはたらく力の大きさと向きを説明しなさい。 2023年度 物理 27 3時間が十分に経過すると、導体棒の速さは一定値となった。 を求めな さい。 107 A 問4 問3の状況において,抵抗1と抵抗2で単位時間に発生するジュール熱をそ れぞれ求めなさい。 問5 問3の状況で発生するジュール熱の元となるエネルギーが何か説明しなさ T B 抵抗 B₁ b B2 図1 抵抗2 導体棒

꒰ 中3 数学 この問題が分からないので わかる方教えて頂きたいです !! ちなみに (1) (2) の両方分かりません 😖

右の図のように,点Pを, x座標が正となるy=x+1の グラフ上にとります。 じく また、点Pから軸に垂線PA をひき, PAを1辺とする 正方形 PABCを, 点Bを 点Aの右側にとってつくります。 点Pのx座標をaとするとき, 次の問いに答えなさい。 (1) 点Cの座標を, a を使った式で表しなさい。 (2) 正方形 PABCの面積が45のときの 点Pの座標を求めなさい。 y P 20 A y=x+1 C B IC

関係代名詞と関係副詞の使い分け方のコツややり方を教えてください

女子大) 女子大) 学院大) 文教大) 学院大) 医大) 各, 関係代名詞 who / which / that の用法 先行詞と格変化 91 Theme 関係代名詞は文を結びつける働きと代名詞の働きを兼ねたもので, 形容詞節を導い。 て、名詞 [先行詞] を後ろから説明(修飾) する。 - who [that] Do you know the people? + They are talking over there. 344 「人」が先行詞の主格関係代名詞 - ➡Do you know the people who are talking over there? jola I bad 先行詞 345 「人」が先行詞の所有格関係代名詞ｰ whose An orphan is a child. + His [Her] parents are both dead. lesb An orphan is a child whose parents are both dead. 先行詞 (70) at night ce which [that] The house was on the main street. + He was looking for it. 346 「人以外」が先行詞の目的格関係代名詞 The house which he was looking for was on the main street. 先行詞 bib 1 samboed nis god fabib I 目的格 [which/who (m)/ that] は省略可 - 347 目的格関係代名詞の省略・ ▶The shoes look rather expensive. + You are wearing them. The shoes which you are wearing look rather expensive. 先行詞 348 『人以外』が先行詞の所有格関係代名詞 whose / of which ◆ 「人以外」 が先行詞の場合, 所有格には次の2パターンある。 She goes to an English school. + The tuition of it is high. She goes to an English school the tuition of which is high. 先行詞 • She goes to an English school whose tuition is high. 先行詞 文法 349 関係代名詞直後のS+Vの割り込み ・関係代名詞の直後に I think [believe] などが割り込んだように見える形があ る。本問の場合、 関係代名詞の働きは I thought の目的語ではなく, was your brother の主語であるから, 主格の関係代名詞 who を用いた ④ who I thought was が正解。 The man proved to be the wrong person. + I thought (that) he was your brother. She goes to an English school. + Its tuition is high. The man who I thought was your brother proved to be the wrong person. 先行詞

なんでwaitingとagesの間にforが必要ないのですか？そういう使い方があるのですか？ 文法的ではなく、意味合い的に教えてほしいです。お知恵を貸してください。よろしくお願いします。

m (2) mplete the conversation. Put in the Past Perfect Continuous of the verbs. chel: How was your job interview? ky: Awful. I felt terribly nervous. () I'd been worrying.. been chel: ky: tired because (1) I've before. (2) I haven't hadn't been So what happened? The woman interviewing me was half an hour late because she had been dealing... (3)..... I had. How did the interview go? said. (4). been. ..... WAIT (1/ worry) about it all week. And I was (1/work) on my project the night working... Lacking.... (1/ not look) forward to the interview at all. wa: ting chel: Cky: Well, I tried to sound confident. (5) (1/read) a book that said that's what you have to do in job interviews. But I don't know if I gave the right answers. why (she/ deal) with an unexpected problem, she (1/ wait) ages, and I'd got even more nervous. "for" ? no Form and use (1-2) Add a sentence with the Past Perfect Continuous to explain why. Look at the pictures to find the reasons.

1から10までの答えを教えて欲しいです🙇‍♀️

に入れるのに最も適当なものを1つずつ選びなさい。 since last year. been heard of 2 had heard of 問7 1 He hasn't 8 3 have heard of 4 heard of 2 They couldn't agree on any of the problems 9 at the meeting. 1 discussing 2 being discussing 3 discussed 3 These books have to 10 back to the library by tomorrow. 1 take 2 be taken 3 taken 4 His advice helped me 11 make 2 making 5 The trouble with him is 12 what 2 which 6 Lots of people have been visiting our new building, 13 unique. that 8 No 15 another 2 which 14 seeing his daughter, he smiled and ran up to her. 1 To 2 On 3 As #9 She stood aside in order to up my mind to study abroad. 3 made 4 be discussed 4 to making he is lazy and he seldom meets deadlines. 3 why 4 that 10 The higher a mountain is, 1 more 2 most 3 whose 16 her mother could pass. 2/so as 3 so that 17 4 taking student can do better than John in mathematics. 2 any other structure is really 4 what 4 During people like to climb it. 3 the most 4 all 4 for that 4 the more

この問題の解き方がどうしても分かりません。 中3でも分かるように教えていただけると嬉しいです！

≪3≫ 右の図は, 1辺の長さが4cmの立方体ABCD-EFGH である。 辺AD, BCの中点をそれぞれM, N とし,線分MN上にMP=M 1cmとなる点Pをとる。 A このとき、四角形AFGDを底面とする四角錐P-AFGDの 体積を求めよ。 S 302 1840 E D H₂ T 4 B IN F

回答お願いします

1 Is polite to elderly people." Vash Pre) 2 Been 3 Be 2 I left my basketball shoes somewhere, so I yesterday. couldn't 2 cannot 3 may not [21] nsw 1.21 on the island. The people there only speak Spanish. isn't spoken 3 is spoken 66 English 3 doesn't speak Ignal ni aprilris & gministqx30 boog asw In610 Tortoid Mar Helen and I exchanged e-mail addresses 4 each other. O contact 2 contacted 3 to contact "I don't like winter in Hokkaido because 2 so 651 190002 Tom helped the elderly lady 5 carried to carrying VIEndil edt 16 gewan blo szedT 81 This is the 6 book of the eight books on this bookshelf. 910 more interesting most interesting 3 as interesting moil 15119 or Legged asw spizzal er If I 7 in Europe, I could go to some famous museums.atog 0 will live 2 lived 3 live her bag. 3 carry 2 play in the game vibroint 260 8 is eight thirty now. I have to leave home. That There 3 It lutholos 2 [TS] 'Stop! You 11 have to Just bas sist 9 3 although 91A 0 [OST] yod sdT OS BR boonsb it's too cold." not gnilool m'I IS I bet new W SSE 10 enter the room now. The teachers are having a meeting there." 3 Aren't 1 Can't 2 Don't cross the street when a car is coming." 3 should 2 must not

教えてください！

問1 問8 1polite to elderly people."xornai reilna ni egnidi er a Is 2 Been 3 Beq aninislqx30 2 I left my basketball shoes somewhere, so I yesterday. couldn't talibnsto Curty toilbroint cannot 3 may not Cronul 91[at] new 12 3 English | 3 on the island. The people there only speak Spanish. doesn't speak isn't spoken Sa® is spoken 10631 ar sm blot 15rbod y di 4 Helen and I exchanged e-mail addresses 4] each other.srli () contact 2 contacted 3 to contact 130002 5 Tom helped the elderly lady 5 carried 島 10 to carrying VIsidil edt ts 8t ns sqawon blo sesdT 81 6 This is the 6 book of the eight books on this bookshelf.910 more interesting 2 most interesting 3 as interesting mont 19119(oriter yaqsıl asw sɔizaster 7 If I 7 in Europe, I could go to some famous museums.g will live No Fea 2 lived tosh 3 live angry?" noklyd al pleum art 01 [OS] yod art OS beonsb or no lust brus 9x6( [[X]" X H her bag.al STA Ⓡ 3 carry 8 is eight thirty now. I have to leave home. That 3 It 2 play in the game vibas 260 9 "I don't like winter in Hokkaido 9 because 2 so much There assiq lutidioso 26 [TS] notib s tot grilool m'I IS asd B it's too cold." terli 0 11 "Stop! You 11 have to 3 although loot w 02, 10 enter the room now. The teachers are having a meeting there." Can't Don't you 3 Aren't cross the street when a car is coming." 2 must not 3 should

AC=2cm、CD=4cmのとき、BD=□√□は何になりますか。

A, Bを の交 次の TAURON NX 2cm O B IC 4cm cm D

（3）がわからないです、教えて下さい🙇‍♀️

4 右の図で,直線の式は 2 /x+10,直 2 線の式はy=- -x+6 であり、 点Pの座標 (12) 直線は点Pを通る直線ℓ と y 軸,x軸との交点をそれぞれA,B,直線と y軸,x軸との交点をそれぞれC,Dとする。 また,直線と直線l, m との交点をそれぞれ Q,Rとする。 このとき、次の問いに答えなさい。 (1) 直線nが原点Oを通るとき, 点Rの座標を 求めなさい。 6 y=-- y= 0 = X- m A となるにあてはまる数を求めなさい。 O O (3) 直線nが四角形ACDBの面積を2等分するとき,直線 GAL & n D FICHE 2 (2) △ARBの面積は△CQDの面積より何cm² 大きいか求めなさい。 ただし、座標軸の1目もりを1cm とする。 y LIGA 195 nの式を求めると, B IC sty 16