この問題の解説を日本語でお願いします🙏

1. A particle of mass m moves in one-dimensional potential given by V(x) = Am cos(x) where λ, A > 0, with initial position xo and initial velocity vo. Draw a graph of the potential, and describe the motion of the particle in the following cases: TT a) x₁ = and v₁ = 0; 22 b) = = 0 and v0 = 0; 3πt 22 Xo c) Xo = - and vo= -2√A. - 2. A particle is dropped in the presence of Stokes drag Farag = -bv, where is the velocity of the particle and b> 0 is a constant. Write down the equation of motion in terms of , and show that the vertical component of the equation of motion is satisfied by: v₂(t) = mg 19 (exp(-)-1) b What is the terminal velocity of the particle? Is it possible to determine the terminal velocity without solving the equation of motion?

この問題の解説を日本語でお願いします🙏

1. A particle of mass m moves in one-dimensional potential given by V(x) = Am cos(x) where λ, A > 0, with initial position xo and initial velocity vo. Draw a graph of the potential, and describe the motion of the particle in the following cases: TT a) x₁ = and v₁ = 0; 22 b) = = 0 and v0 = 0; 3πt 22 Xo c) Xo = - and vo= -2√A. - 2. A particle is dropped in the presence of Stokes drag Farag = -bv, where is the velocity of the particle and b> 0 is a constant. Write down the equation of motion in terms of , and show that the vertical component of the equation of motion is satisfied by: v₂(t) = mg 19 (exp(-)-1) b What is the terminal velocity of the particle? Is it possible to determine the terminal velocity without solving the equation of motion?

赤線部分からの計算の仕方が分かりません。

(21 MY = my fix m² = my - 6x m. m m 3p = 19-8m dx my-bri dt. Jde. los ( mg_bx.) = ++ ( (Constant). m² - 6x = Ce-7²1. fm + Ce-m

3番目の問題と2枚目の写真の問題って、それぞれ答えがlived(was livingでも可)、is readingだったんですけど写真に書き込んでる答えだとなんでダメなんでしょうか、回答いただけると幸いです

[ ]内の動詞を使って英文を完成させなさい。 A B 1) My grandmother walks 2) Kaori is speaking English now. [speak] 3) Kenta has lived for an hour every morn in Yokohama before. [live]

分からないので教えていただきたいです!!💦💦 【⠀】内の語句を参考にして英文を作りなさい 1,私が犬の散歩をしている間に､突然雨が激しく降り始めた｡【start/walk】 It suddenly ( ) to pour while I ( ... 続きを読む

高校英語 現在完了、過去完了、未来完了のまとめの所です。 8番の問題の答えはaなのですが、どうしてそうなるかがわかりません。 （過去のある時点（新しい電話を買った）からさらに前の出来事（古いのはしょっちゅうフリーズしていた）を述べているので、私はbだと思いました。）

8. I got a new phone because my old one ( ) constantly. a. was freezing b. had frozen c. is freezing 9. I) the ocean before I ( ) to California. have never seen move b. have never seen - moved 10. You() since I ( ) you last. d. has been freezing c. had never seen moved

2.3.4 が思いつきません💦 教えてください！

2 You are talking about your future goals with your partner. Change the underlined words to make your own conversations. You can use the words in brackets. 1. A: I want to read some self-help books. Do you know where I can find them? B: ex. They are on the bookshelf near the entrance. [You] 2. A: We have a lot of things to learn to become a doctor. [There] B: That's right. However, I believe it's not impossible because we have a lot of time, too. 3. A: We should make a constant effort to improve. [It, important] B: ex. I agree. I believe my efforts will pay off. Juodo 4. A: What should I do to improve my English? This B: ex. Reading a lot of books is useful. Why don't you try it? [Watching ...] D

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

英語のthatの用法についてです🙇‍♂️ 1文目の「hear that～」「，that」の品詞をそれぞれ教えて欲しいです🥲‎

の文章を読んで下線部を和訳しなさい。 →うしろ完Ju S V前 5. 川に V We constantly hear that “the family” is in trouble, that we must find ways to T> Achi りこんぞうか 角 Rico " 憂慮すきに新しい "Alarming New

並び替えの問題が分かりません!　　 解説無くてもいいので、答えを教えてください!

e Try it out! ()内の語句を並べ替えて英文を完成させましょう。 1. (have enabled/to/computers/us/make) huge advances in a short period of time. 2. (is/the purpose / studying / to / of / English) be able to understand people from different parts of the world directly. 3. (is/having/a/first/step/the / clear goal) to success. てきている。 数十年前は? ーツ選手になることが ンキングに新しい仕事 なった。 例えば、多くの子供 コームクリエイターやネット くなりたいと思っている 2 あなたはクラスメートと将来の目標について話しています。 下線部の語句を自分の言葉で言いかえまし には、技術的な進歩がある [ ]内の語を使っても構いません。 子どもたちや学生が 1. A: I want to read some self-help books. Do you know where I can find them? までとは違うものを B: They are on the bookshelf near the entrance. [You] うことを示している 2. A: We have a lot of things to learn to become a doctor. [There] B: SARTZ That's right. However, I believe it's not impossible because we have a lot of time, too. 3. A: We should make a constant effort to improve. [It, important] B: I agree. I believe my efforts will pay off. 4. A: What should I do to improve my English? B: ex Reading a lot of books is useful. Why don't you try it? [Watching ...]