Grade

Type of questions

Physics Undergraduate

問2の(3)(4)を教えてください

問2. ばね定数 k [N /m] (k > 0) の軽いばねがある。なめらかな水平面上でこ 自然長 のばねの左端を固定し、右端に質量 m kg] の物体を取り付けた。次に、 手で mm 物体を引っ張ってばねを自然長より cm 伸ばしてから静かに手を放した。図 0 に定義された座標軸に基づいて、その後の物体の運動について、以下の間に答 えよ。ただし,時刻 ts]での物体の位置を (t) [m] とし、ばねが自然長のときの物体の位置を原点とする。 (1) Find the restoring force F, [N] that the spring tries to return when the object is displaced by z m from its natural length. (2 points) d'z as its acceleration. dt? (2 points) (2) Find the equation of motion of the object, using the notation of (3) Find the general solution of the equation of motion of the object. (3 points) (4) Find the solution that meets the initial conditions described in the problem. Here, the moment when the hand is released is set as time t==0s. (3 points) 問3.問2では摩擦などの抵抗力がない理想的な単振動を扱ったが、実際には抵抗力が存在する。 抵抗力は速度 dt に比例することが多く、この比例定数をc[N.s/m] (c> 0) とおくと、 運動方程式は教科書 P.66 の(2.40)式として表 される。この方程式の一般解は、 教科書 P.52に示す「定数係数の2階線形同次微分方程式の一般解」として表され、 教科書 P.66 の下段3行に示すような解 a) c)となる。これらの解の導出課程を、 以下の手順に従って示せ。 d。 da. (1)(2.40)式 m = ーkc - c dt? の右辺において、c dt の項の符号がマイナスである理由を考察せよ。 dt (2点)

Waiting for Answers Answers: 0
English Senior High

画像の1番下の Q1 What were the good points of the 20th century? What were the bad points? の答えはどうなりますか?

“Looking Back at the Twentieth Century" is an exhibition of 300 photographs which show us the history of the past In the entrance hall the guide introduces the look back at = recall ~ century. photographs. Ladies and gentlemen, welcome to “Looking 5 Back at the Twentieth Century." /The 20th century was an age of great pregress in science and communications. People's lives became richer and more comfortable. People achieved greater freedom 10 and equality, and seemed to be closer to the dream of living a happy life. But it was also an age of terrible wars, and G-2 tens of millions of ~ tens of millions of people lost their lives. The photos =a great many ~ here will show you what people like you and me 15 went through in the 20th century. As you look at G-1 them, ask yourself: “How would you feel if these O cannot rememi were photos of your own family and friends ?” Some -ondemned to rg George Su will shock you; some may make you sad or angry. But they will also give you a message for our future. Ago |20 Before you look at the exhibition, I would like to show you twophotographs which are particularly TF important to us. fotod freedom [fri:dan entrance [éntrans] progress [prágras] achieve [atfi:v] terrible [térabl] particularly [partikjalarli] exhibition (èksibifan] equality [ikwálati] 15. go through Many people went through hard times during the war. G-2 She told me how she had solved the problem. G-1 Ifihad a lot of money, I could buy that sports car. Q-1 What were the good points of the 20h century? What were the bad points? e? 113

Waiting for Answers Answers: 0
English Senior High

関係代名詞がわからないので教えてください

(1) 私が話しかけた学生 is from Australia. (1 spoke to the student.) EXERCISES 1関係代名詞を用いて下線部を英語にしなさい。 (1), (2)は ( 59 )内を参考にすること。)『A す s が普 is 彼がその写真を撮ったカメラ、(He took the picture with the camera.) is from Australia. This is is located near Fukuoka. (4) 兄が働いている銀行 is around here. is around here. 2関係代名詞 what を用いて下線部を英語にしなさい。 19e suort sitl B 1) 重要なこと is never to give up. ode vob sfi et biowiot nile is never to give up. 0) This library is 私たちの町が必要としているもの。 2 lo ntrdh This library is (3)この本に書かれていることis very important. is very important. (4) This is 長年私が買いたいと思っていたもの. This is 3 日本語の意味を表すように,( (1) ガラパゴス諸島はいわゆる自然の驚異です。 )内に適切な語を入れなさい。 dot orit C 3 The Galapagos Islands are ( (2) 勤勉さがルーシーを今日の彼女にした。 Diligence has made Lucy ( (3) 私たちは森で道に迷った。さらに悪いことには, 雪が降り出した。 )a wonder of nature. ) today. We lost our way in the woods, and ( D の ), it began to snow. ( )内より適切な語を選びなさい。総合 (1) She buys anything (what/that) her grandchildren want. (2)(That/ What) makes me happy is good music. B2 →B12 →A★注題(2) (3) He sent me an article in (which / that) he discussed his new economic policies. *rely on :…に頼る 4) The man on (who/whom) Ted relies for support has gone abroad. →A★注意(3) 四日本語の意味を表すように, ( ) 内の語句を正しく並べかえなさい。 総合 時の学校制度は今日のものとは大きく違っていた。 und audyos s oi →C』 ne school system in those days was very (is /it/from / what/ different) today. The school system in those days was very today. →B2 19 あなたが最初にしなければならないことは, 謝ることです。 (do / have / to / you / what) first is apologize. first is apologize. This is the student ! told you about yesterday. (会話文) 61 4

Waiting for Answers Answers: 0
English Senior High

英語です。わかる方いたら教えて下さい🙏🙏

CHECK の(AO 01 am as fall as my father, (私は父と同じくらいの背丈です。) ② My room is not as[so] large as yours. (私の部屋は君の部屋はど広くない。) (Aは日と同じくら 原線 B)(AはBほどで 0制詞の原 OI can swim as fast as she (can). (私は彼女と同じくらい速く泳げます.) O Maki has longer hair than I (do) /me. (マキは私より髪が長い、) 比較級は、0 +。 6(more+原動)であす (A 比量+hn 「AはBより~」 比較線 6 Soccer is more popular than baseball in Spain. (スペインではサッカーは野球より人気がある。) 6I practiced the piano harder than my sister. (私は姉[妹]より一生懸命ピアノを練習した。) O副詞の比較場 The Shinano is the longest river in Japan. (信濃川は日本で最も長い川です。) 最上級は、の級+ 最上級 8 Betty is the most intelligent of us all. (ベティは私たちみんなの中で最も頭がよい。) 8(most+原級)で表す <A. the+上) 「Aは一番「最も」~ 9I usually get up (the) earliest in my family. (私はたいてい家族の中で一番早く起きる。) 9副詞の景上級には普通。 つけないが、実際にはつ とも多い。 最上級の意味 10 Lake Biwa is the largest lake in Japan. を表す表現 D原級。比較級を用いて、 の意味を表すことができ any other. no Cher には単数名詞を用いる。 (琵琶湖は日本で最も大きい湖です。) ーLake Biwa is larger than any other lake in Japan. (琵琶湖は日本のほかのどの湖よりも大きい.) - No other lake in Japan is as[so] large as /larger than Lake Biwa. (日本に琵琶湖ほど大きい湖はない。) EXERCISES HINTS 11. 次の文の( )の語を適当な形に直しなさい。 nearest 1. er-est をつけ 音節の語と1 の一部、 more/mast を 語:多くの と3音単以上の (1) We went to the ( near) restaurant from here. hote setel (3) Which is (large), your room or your brother's? _the tatgest ge (2) This dictionary is ( useful) than that one. (4) I like vegetables ( well ) than meat, (6) (one of the+! の複数粉で ものの1つ (5) Autumn is the ( good) season for traveling. (6) Tokyo is one of the ( big) cities in the world. (7) This is the (bad) movie I have ever seen. (7)「今まで見た中 (8)「予想より悪 9) 語尾が (8) The situation was (bad) than I had expected. more/ most (9) She speaks English (fluently)in the class. PLUS 「時間が遅い」 late-later-lates 「順序が後の」 late-latter.last 00 I have (many) CDs than she has. 11) Mike spent the (Jate) half of the year in California.

Waiting for Answers Answers: 0
English Senior High

英語です。わかる方いたら教えて下さい🙏🙏

O1am as tall as my father. (私は父と同じくらいの背丈です。) CHECY 6ト 原線 (AはBと ② My room is not as[so] (arge as yours. (私の部屋は君の部屋ほど広くない。) 0ト- 、。 8(Aは8と。 OI can swinm as fast as she (can). (私は彼女と同じくらい速く泳げます。) ④ Maki has longer hair than I (do) / me. (マキは私より髪が長い。) 9 Soccer is more popular than baseball in Spain (スペインではサッカーは野球より人気がある。) 出約は0。 比較線 (A (AはBより~。 6I practiced the piano harder than my sister (私は姉[妹]より一生懸命ビアノを練習した。) O The Shinano is the longest river in Japan. (信濃川は日本で最も長い川です。) 最上級は、0 最上級 8(mast+原場 8 Betty is the most intelligent of us all. (ベティは私たちみんなの中で最も頭がよい。) (A. the+ 「Aは一番開。 9Iusually get up (the) earliest in my family. (私はたいてい家族の中で一番早く起きる。) 9副詞の最上曜 つけないが、実 とも多い 最上級の意味0 Lake Biwa is the largest lake in Japan. (琵琶湖は日本で最も大きい湖です。) Lake Biwa is larger than any other iake in Japan. (琵琶湖は日本のほかのどの湖よりも大きい。) O原線、比較量 の意味を表す を表す表現 any other には単数名詞 No other lake in Japan is as [so] large as /larger than Lake Biwa. (日本に琵湖ほど大きい湖はない。) EXERCISES 1. 次の文の( )の語を適当な形に直しなさい。 (1) We went to the (near) restaurant from here.nearest (2) This dietionary is ( useful )than that one. 1 Inote seldl の一 (3) Which is ( large), your room or your brother's ?_4ht tatgest age - (4)I like vegetables (well) than meat. (5) Autumn is the (good) season for traveling. 6 (m (6) Tokyo is one of the ( big) cities in the world. (7) This is the ( bad) movie I have ever seen. (9語 (8) The situation was (bad) than I had expected. (9) She speaks English (fluently) in the class. 00 I have(many) CDs than she has. 時間 late-l D Mike spent the (late) half of the year in California. late-

Waiting for Answers Answers: 0