質問です。どうして音波の振動が２倍になりますか

問3 弦の振動 うなり] ちょうりょく せんみつど 次の図のように, 一定の張力 F〔N〕 で張った線密度 (line density) 〔kg/m] の弦がある。 支柱 A,Bの距離を1〔m〕 にして, 弦の中央をはじくと基本振動 (fundamental vibration)を生じた。 ① しんどうすう (1) このとき, 弦の振動数 (frequency) は何Hzか。 正しいものを、次の①~④ の 中から1つ選びなさい。 1 F INO A (2) B 21 √ F F 21 V P おん ば 音波を発するが, この音波の 問4 [音 2点A f [Hz] とき, いじょう (1)

赤線の部分の訳と文構造が分かりません。 見ずらくてすいません🙇‍♂️

truly become between two independent individuals who fell in love and decided to make a life Such an important decision, perhaps the most important for themselves. decision of one's life, cannot be made by others. (1) sense. Marriage is But in many cultures it simply doesn't make fundamentally a social bond, uniting families and cementing their cultural and (イ) religious values. It may be romantic, but it is not just about the bride and groom; it's about family and community. Indeed, even in the West for most of history, marriage was not primarily about the individual needs and desires of a man and woman and the children they produced. Marriage had as ( ) to do with getting good in-laws and increasing one's resources and family labor force as it did with finding a lifetime companion and raising a beloved child. or Marriage spoke to the needs of the larger group. 3 Different traditions, different marriages. In India, over 90 percent of the (2) bemarriages are arranged. One survey in 2013 revealed that 74 percent of young 9 Indians aged between 18-35 years said that they would rather let their parents ad choose their life partners than choosing themselves. While the traditiona practice of arranged marriage has been illegal in China since the 1950s, parent remain heavily involved in their children's marital decisions, with many paren trying hard to persuade their children to get married by interrogating the (13) during family gatherings. In Japan, it was not until the early 1960s that le marriages outnumbered arranged ones. Arranged marriages can take a variety of forms ranging from fo marriages (where either the bride or the groom, or both, have no choice in matter) to consensual marriages (where the bride and groom have all 002 - 1

これの回答お願いします☺💓

(30) (31) (35) ( (36) (37) (41) (31)_ [ G ] 日本語の内容を表すように、 Ken, ( (32) (33) ( ( (34) 私は3つの言語を知っています。 (1/languages/know/three). ( (29) 一生懸命勉強しなさい。 (hard/study). (30) 私の父は毎日、始発電車に乗ります。 (first / the / dad/my/train / takes) every day. ( に適切な語を入れなさい。 harder,ケン, もっと一生懸命勉強しなさい) a good girl, Emily. (いい子にしていなさい, エミリー) (32) (33) interesting this anime is! (このアニメはなんておもしろいのだろう) (34) ･・) a good cook you are! (あなたはなんて料理がうまいのだろう) funny clothes he wears! (彼はなんておかしな服を着ているのだろう) (35) (36) ) ( (38) hot it is this summer! (この夏はなんて暑いのだろう) [H] 日本語の内容を表すように, ( )内の語句を並べかえなさい。 (39) (39) in the library. (図書館内で食べてはいけません) (37) ( smile/Maya/a/beautiful / what / has)! (マヤの笑顔はなんて美しいんでしょう) (40) (doing you/what / were) at that time? (そのとき、あなたは何をしていたのですか) at that time? (44) (38) (40)_ What time (your father/comehome/usually / does)? (あなたのお父さんはふだん何時に 帰宅しますか) What time (41) (42) ( about / talk/let's/ comic books) today. (今日はマンガについて話しましょう) _today. (42) (43) (this boy / how / is / clever )! この男の子はなんて利口なんでしょう) (43) (44) (Tom/am/with/Ⅰ/ talking) on the phone. (私はトムと電話で話をしています) on the phone. 神

あっているか確認お願いします。

2. 比較表現: ①値段 Your Turn! あなたはデジタルカメラを比べています。 表内の情報をもとに英文を 完成しよう。語群から適切な語を選んで、形を変えて書きましょう。 型 Model A Model B Model C ②サイズ ③機能 ④デザイン ⑤人気度 値段 10,000円 12,000円 20,000円 サイズ 小型 小型 超小型 Model Ais more cheap Model Cis Model C is 機能 ★★★★ expensive smallest the most the most Model B has more Model Bis the most stylishest Model Ais_more popular デザイン ★ ★★★ ★★ 人気度 ★★★ ★★ than Model B. - of the three. Map of the three. functions than Model A . of the three. than Model B. 語群 [ expensive / cheap / big / small / many / stylish / popular]

あっているか確認お願いします。

2. 比較表現: ①値段 Your Turn! あなたはデジタルカメラを比べています。 表内の情報をもとに英文を 完成しよう。語群から適切な語を選んで、形を変えて書きましょう。 型 Model A Model B Model C ②サイズ ③機能 ④デザイン ⑤人気度 値段 10,000円 12,000円 20,000円 サイズ 小型 小型 超小型 Model Ais more cheap Model Cis Model C is 機能 ★★★★ expensive smallest the most the most Model B has more Model Bis the most stylishest Model Ais_more popular デザイン ★ ★★★ ★★ 人気度 ★★★ ★★ than Model B. - of the three. Map of the three. functions than Model A . of the three. than Model B. 語群 [ expensive / cheap / big / small / many / stylish / popular]

日本語訳お願いします

9:19 Lesson 5 Mental Toughness Section 2 * 2 Stay focused. Relax. 5G |連続 -X 83% You might be surprised that even 押し続けると world-class athletes get nervous and - lose confidence. Roger Federer is one of the greatest tennis players of all time. He is the winner of 20 Grand Slam tournaments. You might think that he would have no problems keeping up his self-confidence. You would be wrong. Roger Federer is sometimes plagued with negative thoughts. He was playing a match which he had perfectly prepared for, yet somehow he was losing. When asked how he felt, he said, "No matter how positive you are, you just see negativity flying all around you." So what is his advice? Accept all the difficult thoughts and feelings and just stay focused on the game.

本当にお願いします！！フォロー、ベストアンサーしますので！！ 2枚目は並べ替え問題です

step, ③3) どうかそれらの絵に触れないでください。 )( )( ) those paintings.

本当にわからないです！すごく困ってます！答えだけでもよいのでお願いします🙇⤵️

ム (Tom) について adents. Tom is from and they studied and see the *cherry use. They are very kashi said, "Oh, no. The cherry blossom ami. Hana means means to see the 1. and see the cherry a for Tom. You will How about making md Tom *began to ey enjoyed making they got near the ery beautiful. And er." Takashi was ■ lot of cherries on erry trees are only trees, ' but there ■e! The Japanese …... ~を・･・ と呼ぶ, らくの間, "early るため (1) 下線部① の That は具体的に何をさしていますか。 日本語で簡潔に書きなさい。 (2) 下線部②の( )内にあてはまる最も適切な語を,次のア~エから1つ選んで, 記号で 答えなさい。 ア spring イ summer ウ fall I winter (3) 下線部 ③ の That がさすものを本文中から英語3語でそのまま抜き出して書きなさい。 (4) トムはなぜ下線部④ のように言ったのですか。 最も適切な理由を. 次のア~エから1つ 選んで記号で答えなさい。 アタカシはサクランボが好きだから。 イ サクランボは初夏がいちばんおいしいから。 ウ 公園のサクラの木にサクランボがたくさんなると思ったから。 エ 木にサクランボがたくさんなっているから。 (5) 本文の内容に合うように、 次の(a), (b)の対話文を完成させるとき, ( )内にあてはま る最も適切な語を, それぞれ1語ずつ書きなさい。 (a) Where did Takashi and Tom study on Sunday morning ? They studied ( ) ( ) ( ) (b) Did Takashi and Tom go to the park to study cherry trees ? ), ( ) ( (6) 本文の内容と合うものを,次のア~エから1つ選んで, 記号で答えなさい。 ア Tom was in Japan one year ago. イ'Hanami usually means 'to see different *kinds of flowers.' ウ Tom didn't like making onigiri. エ Tom didn't know that Japanese cherry trees are only for seeing blossoms. kind: 種類 (13)

赤く丸をしたbの問題で解答の方に二階微分した後の式がなぜ(-1/4)(-1/4)(H-27)になるのか分かりません。教えてください🙇‍♀️

QA At time t = 0, a boiled potato is taken from a pot on a stove and left to cool in a kitchen. The internal temperature of the potato is 91 degrees Celsius (°C) at time t = 0, and the internal temperature of the potato is greater than 27°C for all times t > 0. The internal temperature of the potato at time t minutes can be modeled by the function H that satisfies the differential equation dH (H- (H-27), where H(t) is dt measured in degrees Celsius and H(0) = 91. (a) Write an equation for the line tangent to the graph of Hat t = 0. Use this equation to approximate the internal temperature of the potato at time t = 3. (b) Use 2017 APⓇ CALCULUS AB FREE-RESPONSE QUESTIONS (a) dH d²H dt² to determine whether your answer in part (a) is an underestimate or an overestimate of the internal temperature of the potato at time t = 3. (c) For t < 10, an alternate model for the internal temperature of the potato at time 7 minutes is the function -= − (G - 27)²/3, where G(t) is measured in degrees Celsius dG G that satisfies the differential equation dt and G(0) = 91. Find an expression for G(t). Based on this model, what is the internal temperature of the potato at time t = 3 ? 564 at (21-27) - == 2-16 To = - = (H(3)-27) 4 -64 = HB)-27 -37 = H (3) (b) _d²fi © 2017 The College Board. Visit the College Board on the Web: www.collegeboard.org. GO ON TO THE NEXT P

誰かわかるかたはいませんか？答えだけでもよいのでお願いします🙇⤵️

[2] 次の英文は,中学生のタカシ (Takashi) とアメリカからの留学生トム (Tom) について 書かれたものです。 よく読んで、 あとの (1)~(6) の問いに答えなさい。 Takashi and Tom are good friends. They are junior high school students. Tom is from America. He came to Japan six months ago. One Sunday morning in April, Tom came to Takashi's house, and they studied together for two hours. When they finished, Takashi said, "Let's go and see the cherry blossoms. There are many cherry trees in the park near my house. They are very beautiful now." Tom asked, "Are you going to study cherry trees?" Takashi said, "Oh, no. In Japan, we enjoy eating lunch under the cherry trees during the cherry blossom season." "Oh, really? That *sounds nice," said Tom. "We *call it hanami. Hana means flowers, and mi means to see. But when we say hanami, it usually means to see the cherry blossoms," said Takashi. "I see. OK, let's go, Takashi," said Tom. Takashi and Tom went to Takashi's mother and asked, "May we go and see the cherry blossoms ?" His mother said, "Sure. This is the first ( ) in Japan for Tom. You will enjoy it." Takashi said, "So I want to make lunch." His mother said, "How about making onigiri together ?" "That's a good idea," said Takashi. So Takashi and Tom *began to make onigiri. "This is like a *snowball. It's a lot of fun," said Tom. They enjoyed making onigiri* for a while. 4 Then Takashi and Tom walked to the park with their lunch. When they got near the park, they could see the cherry blossoms. Tom said, "Wow! They are very beautiful. And so many blossoms! You can eat a lot of cherries in *early summer." Takashi was surprised and asked, "Why ?" Tom "answered, "Because there will be a lot of cherries on these trees." "Oh, no. Cherries don't *grow on these trees. Japanese cherry trees are only *for seeing blossoms." "Oh, I didn't know that. We call them 'cherry trees,' but there aren't any cherries! That's interesting. Look! There are a lot of people! The Japanese people really like hanami," said Tom. They enjoyed hanami very much. *cherry : サクラ, サクランボ, *began begin (始める) の過去形、 *answer : 23. summer. (12) *call~ ... ~を･･･と呼ぶ, *for a while : しばらくの間, *early * for seeing: 鑑賞するため *sound: ~のように思われる, * snowball: 雪だま, grow: 育つ, (1) 下線部 ① (2) 下線部② 答えなさい 7 spring (3) 下線部 (4) トムは右 選んで,言 アタカ イサク ウ 公園 エ 木に (5) 本文の る最も適 (a) Whe (b) Did (6) 本文 ア To イ H ウ Ta I To "kin.