(2)についてわからないところがあります。 mg•tanθ=mg•(√l’^2-l^2)/lのmg•(√l’^2-l^2)/lはどこからきたのですか。

203. 円錐振り子 自然の長さ ばね定数kの軽いばね の一端を天井に固定し、 他端に質量mのおもりをとりつけ る。 図のように, 天井からの距離が1の水平面内で,おも りを等速円運動させた。 重力加速度の大きさをgとして 次の各問に答えよ。 HOME 000000000000000000000) ľs (1) ばねの長さを, k, l, m, g を用いて表せ。 (2) 等速円運動の角速度と周期を, l, g を用いてそれぞ れ表せ。 例題28 ヒント (1) ばねの弾性力の大きさはk(U-1)であり,この力の鉛直成分と重力がつりあっている。 m

物理基礎です。 この問題がわかりません。教えてください🙏

*YOMRO: 7/W37ROV 147 3 [S/m]0'921412108 2119 T (V */8 724% [S/m]0'92027

この教科書の文を覚えたいので適当に15単語くらい隠して欲しいです！

Asami: Mr. Baker: For five years. Asami: What brought you here? Well, I learned about haiku when I was in elementary school. It was very interesting, and I wanted to learn more about Japan. 5 Really! That's great. Who's your favorite haiku poet? Mr. Baker: Basho. I've been a big fan since I first read his haiku. His images of Japan made me rious. Mr. Baker, how long have you lived in Japan? m Mr. Baker: his Asami: Tec 10

（5）どう考えたら解説の式になるんですか？ 教えて欲しいです

B リード C 基本例題 12 等速円運動 >>44,45,47,48 なめらかな水平面上の点に、長さ0.50mの軽い糸の一端を固定し、他端に質量 1.0kgの物体をつけ, 速さ 2.0m/s の等速円運動をさせた。 (1) 等速円運動の周期 T [s] を求めよ。 (2) 物体の角速度 の [rad/s] を求めよ。 (3) 物体の加速度α [m/s'] の向きと大きさを求めよ。 (4) この運動を続けるのに必要な向心力 F〔N〕 の向きと大きさを求めよ。 (5) 糸が18Nまでの張力に耐えられるとするとき, 最大の角速度' [rad/s] を求めよ。 脂糸の張力が等速円運動の向心力の役割をしている。 2πr 緊習 (1) 等速円運動の周期の式 「T= V 第4章●等速円運動慣性力 31 より T 2×3.14×0.50 2.0 -1.6s (2) 等速円運動の速度の式 「v=yw」より -=4.0rad/s 2.0 V r 0.50 (3) 等速円運動の加速度の式「α=rω°」 より α = 0.50×4.02-8.0m/s2 KKS 向きは円の中心点0を向く。 (5) 角速度が最大のとき F=mrw=18 が成りたつ。 〈物体 向きは円の中心点0を向く。 (4) 等速円運動の向心力の式「F=mrw²」より F = 1.0×0.50×4.0² = 8.0N 2.0m (5 Somat F=1.0×0.50×⑦=18 よって 36 ゆえにω'=60rad/s 5 "L 1

‼️‼️至急お願いします‼️‼️ 分詞の文法が分かりません> <‪💧‬解答だけでもお願いしたいです🙇‍♀️🙏

7 分詞 1 空所に入る最も適当な語句を答えなさい。 166 167 There is a weekly brass band concert, ( weather is permitting 3 weather permitting 1) left my umbrella in the train, I got wet in the rain. 2 To be 3 To have Being 168 Bill was the only person ( 169( 170 What happened to Taro? He seems to ( 1 shock 2 shocked 171 They were ( amaze ) in the car accident. being injured 2 injuresmorl bo injured 79170 254 injuring foodse 100) in plain English, the book is suitable for beginners. Writing 2 Written 3 Having written 172 All things ( 175 ( 3 considering having considered 173 I've got a surprise. Keep your eyes ( 1 close 2 closing to close 174 Mary's parents seemed ( ) at the singer's fantastic voice. 2 amazedynille amazing of ), everybody can say this result is correct. 2 to consider relief Tre and wo? relieved 178 There is nothing ( embarrassment 2 weather will be permitting 4d weather permits Jnslia boniemen 4 176 He was lost in thought with his 1 close 2 closed KISV 150) by something. 3 be shocking eyes ( 4 Having ) his mistake, John decided to apologize to his parents. Had realized 2 Realized 3 Has been realizing li jarli ne ). 3 closing considered onod \ gniwonal (東京造形大) 4 To write t 4 4 be shocked (京都産業大) 静岡県立短大) matomy(東北工業大) 4mamazement (札幌大) ) to hear that her plane was on time. ( 聖マリアンナ医科大) to relieve 3 relieving Monty ) until I tell you to open them. ( 桜花学園大 ) close to have clo closed 3 4 od of brusque invasiq 280dy to IA to close (金蘭短大) 177 Do know that woman over there, the one (de ) in the white blouse? you mimidi won of w rol hatnicareant 27 11 1 to dress dressing 3 dressed 4 dresses ( 桜花学園大 ) (南山大) 4 Realizing ( 桜美林大) 南山大) ) about asking for help when you are in trouble. (関西学院大) embarrassing 3 embarrassed 4 embarrass 21 7 一分詞 分 詞

答えを教えてください！ よかったら，根拠も教えてください

la vitbl Questions 4-7 refer to the following letter. January 10 Ms. Erin Murphy Customer Service Department Westcoast Airlines Major Miles Program 345 Brook Street Dallas, TX 75218 Dear Ms. Murphy, As per your request during our telephone conversation on January 8, I am sending you Los Angeles International Airport last December. Please note that my ticket was upgraded itinerary and ticket number for my recent roundtrip flight from JFK International Airport business class with a Major Miles Gold Class voucher and should therefore be eligible f full business class mileage credit. 62 Section Il over 15 years. I must confess that I find the new restrictions to your flight voucher pla I am a Gold member in the Major Miles program and have been a Westcoast customer 1 genuinely confusing. I fail to understand why the burden of proof for my mileage cred rests with me. Shouldn't this information be on your ticketing computer? This was my itinerary. MD My ticket number was #YB42565697. Departed JFK, December 22 at 10:20 for LAX Returned to JFK from LAX on December 29 at 16:40 My seat number was 14B. 7B My Major Miles number is # 04356721 (Gold Card). I sincerely hope that this issue will be resolved quickly as I am counting on my miles eame during this trip to upgrade my hotel room next May. Thank you very much for your attention in this matter. Sincerely Yours, Jarrod Watkins Jarrod Watkins 4. 5. 6. What does Ms. Murphy do? (A) She makes airline reservations. (B) She deals with unhappy customers. (C) She issues new tickets. (D) She upgrades people to business class. What is the purpose of this letter? (A) To upgrade his ticket to business class (B) To buy a flight upgrade coupon (C) To complain about his seat reservation (D) To receive more mileage credits How does Mr. Watkins feel about the new frequent flier program rules? (A) He would like them to be simpler. (B) He believes they are unfair. (C) He finds them to be convenient. (D) He hopes that they will benefit hold Card members more. Which of the following is NOT mentioned in the letter? (A) His ticket number (B) His frequent flier level (C) His credit card number (D) His flight information inq M:8 big en enthovenot cold w lar hud,mq 01X in jord is di Hal Unit 2: Letters, E-mails, & Text message chains 63

答えを教えてください！解いたんですが友達と違っていて、教えて欲しいです。 よかったら，根拠も教えてください

January 10 Ms. Erin Murphy Customer Service Department Westcoast Airlines Major Miles Program 345 Brook Street Dallas, TX 75218 Dear Ms. Murphy, As per your request during our telephone conversation on January 8, I am sending you Los Angeles International Airport last December. Please note that my ticket was upgraded itinerary and ticket number for my recent roundtrip flight from JFK International Airport business class with a Major Miles Gold Class voucher and should therefore be eligible fo full business class mileage credit. I am a Gold member in the Major Miles program and have been a Westcoast customer f over 15 years. I must confess that I find the new restrictions to your flight voucher pla genuinely confusing. I fail to understand why the burden of proof for my mileage cred rests with me. Shouldn't this information be on your ticketing computer? 62 Section II This was my itinerary. My ticket number was #YB42565697. My seat number was 14B. Departed JFK, December 22 at 10:20 for LAX Returned to JFK from LAX on December 29 at 16:40 7B My Major Miles number is # 04356721 (Gold Card). I sincerely hope that this issue will be resolved quickly as I am counting on my miles earned during this trip to upgrade my hotel room next May. Thank you very much for your attention in this matter. Sincerely Yours, Jarrod Watkins Jarrod Watkins 4. 5. 6. What does Ms. Murphy do? (A) She makes airline reservations. (B) She deals with unhappy customers. (C) She issues new tickets. (D) She upgrades people to business class. What is the purpose of this letter? (A) To upgrade his ticket to business class (B) To buy a flight upgrade coupon (C) To complain about his seat reservation (D) To receive more mileage credits How does Mr. Watkins feel about the new frequent flier program rules? (A) He would like them to be simpler. (B) He believes they are unfair. (C) He finds them to be convenient. (D) He hopes that they will benefit Gold Card members more. Which of the following is NOT mentioned in the letter? (A) His ticket number (B) His frequent flier level (C) His credit card number (D) His flight information inaba na basa Juu) stevir) | atunim's New malum Unit 2: Letters, E-mails, & Text message chains 63

英語学の問題なのですが、(5)(6)の樹形図がわかりません。 教えてくださると嬉しいです🙇‍♀️

(5) 示された順序にしたがって, 枝分かれ構造(樹形図) を組み立てなさい。 出来上がった 結果が 右側主要部の規則に合っているかどうか, 検討しなさい。 a.educate 接尾辞 -ion を付ける→接尾辞-al を付ける b. fortune 接尾辞 -ate を付ける→接頭辞 un- を付ける→接尾辞 -ly を付ける C. pass→接尾辞 -er を付ける→その後ろに小辞 (particle) の by を複合する (6) 次の複合語ないし派生語の意味を述べ, その形態構造を樹形図で示しなさい。 特に d は、2通りの意味があるので,それぞれの意味に応じて2つの構造を示す。 a. baseball player b. Japan Olympic Committee chairman c. unreliableness [ヒント: un- は形容詞に付き, -ness は形容詞に付く。] d. unlockable [ヒント: lock は動詞。]

完了形の5の(1)の問題についてです。 答えは完了形を使っているのですが、 Where have you been? となる理由が分かりません。 Where were you?　 では駄目なのでしょうか。

), 3. How long have you been in Jap 4. Sally has never been to a circus. 5. I've been (feeling) sick [ill] since I woke up this morning. 解説 1. 疑問文の yet は ｢もう~したか」 と完了を尋ね る表現で, 現在完了形と共に使う。 2.5. 動作の継続には現在完了進行形 〈have [has] been + doing> を使う。 5. は I've been sick [ill] でもよい｡ 3. How long...? は期間を尋ねる表現で,現在完了形と共 に使うことが多い。 4. never 「一度も〜ない」 を現在完了形と共に使う。 5 英作力を磨く 1. Where have you been? I've [We've] been looking for you. 2. When did you change your email [e-mail] address? 3. Mr. [Ms.] White has been teaching [has taught] English for 12 [twelve] years. 解説 1.3. 状態の継続 「ずっと〜である」は現在完了形 で,動作の継続 「ずっと~し続けている」 は現在完了進行 形で表す。 3. は継続を表す現在完了形 has taught も可。 When did...? 「いつ･･･ したか」 は過去のある時点を尋ね る表現で、 過去形を使う。 入試問題にTry X 2. 弟は10時間,眠っています。 My brother どれくらいの間,日本にいらっしゃいますか。 How in Japan? 4. サリーは一度もサーカスに行ったことがない。 Sally a circus. 5. 今朝目が覚めてからずっと気分が悪い。 13. breakfast yet? 5 英作力を磨く X 1. 次の日本語を英語に直しなさい。 どこにいたの。 あなたを探していたんだよ。 since I wo □ 2. いつメールアドレスを変えたのですか。 for t Hints> 1. ｢~を探す」 look for ~ ■ 3. ホワイト先生は12年間, 英語を教えています 2. 「メール 6 入試問題に Try ( ( )に入る最も適切な語 □ 1. One of my friends ( ) UFOs many tir 2 have seen

なぜ間違っているのか教えてください！

7. 意味を研究する分野は? 1. OPhonology 2. 3. Syntax Morphology 4. Semantics 5. Pragmatics X