等加速度運動における ①v=v₀+at ②x=v₀t+(1/2)at の2つの公式について質問です。 (加速度a,経過時間t,初速度v₀,変位x) 等速度運動においてx=vtが成り立ちます。日本語で考えたら、「速度v(m/s)でt(s)間動いた時の変位xはx=vt」で正し... 続きを読む

里祝与具である。 JP間く 定である直線運動を,寺加, linear motion of uniform acceleration 線運動という。 ●等加速度直線運動の式 加速度 a [m/s°]で,物体が等加速度直線 運動をしている。このとき,時刻 t= 0における速度(初速度)をv (m/s), そのときの位置を原点と し、初速度の向きを正としてx軸 変位x Vo a 時刻0 時刻t initial velocity ン 図17 等加速度直線運動 運動を測定し始める時刻をt=0とする。 をとる(図立)。時刻[s] における V2-V1 式(11) a= t-t ○p 速度を[m/s) とすると,式(11) から,速度»は,次式で表される。 …(12) 途中計算 式(11)に, a=a, t;=0, な=t, u V2=ひを代入して整理すると, 式(12)が得られ ひ= Vo+at この運動のーtグラフは, a>0であれば, 図18のような右上がりの となる。このとき,グラフの傾きは加速度 a, 切片は初速度 voに相当す このグラフを利用することによって, 時刻 t[s] における物体の変位xlr 次式で表される。 傾きは加速度 aを表す 1 [m/s) x=Vot+ at? . (13) 式(13)の導き方図18で, 時間を微小な時間 間隔 dt(s) で等分すると, 各区間は等速直線 運動とみなせる(図19(a))。 このとき, 各区間 の移動距離は,長方形の面積で表され, 時刻 t(s)における変位x[m]は, それらの面積の 総和となる。At(s]が十分に小さければ, 長 Vo 切片は初速度 00を表す 0 方形の面積の裕和山 速度 "

全ての問題じゃなくてもいいので答え教えて欲しいです🙏

(上目反姫心 【1】次の各組の内容がほぼ同じになるように、( Goro came home. It was five o'clock. )内に適語を入れなさい。 )five o'clock. (三重県立) Goro came home( I have never seen sucha pretty doll. (2X This is ( ) doll I have ( )seen. How well he swims! (38 What a ( )he is!(開成) I cannot finish my homework if you don't help me. I cannot finish my homework ( )your help.(立命館) I have letters. I have to read them. I have letters ( Let's go shopping, shall we? (68 ) about ( ) shopping?(慶鷹義塾) Mr. Saito began to study English at the age of seven. Mr. Saito began to study English when ( )years old. Please pass me the sugar. Pass me the sugar, ( )?(青雲) She got to the museum in ten minutes. ) her ten minutes to get to the museum.(慶鷹義塾) Tokyo is the ( (10) Tokyo is larger than any ( ) city in Japan. )in Japan.(大阪星光) 【2】 次の日本文に合う英文になるように、 )内に適語を入れなさい。 あなたに何かよいものをあげましょう。 Ill give you ( ).(駿台学園) 彼はドイツ語は話せません。 私も話せません。 He can't speak German andI can't, ( ).(学習院)

中学英語の復習をしていたのですが、④と⑤の答えがdoとdoになる理由が分かりません。どう言う事ですか？

〈疑問文·否定文〉 次の英文の ( 小 )内から適するものを選び,○で囲みなさい。 ① (Do, Does, Are ) you know that tall player? ②(Do, Does, Is ) this bus go to City Hall? の Does your brother ( stay, stays) at home now? のWhen ( do, does, are) you do your homework? ☆O1(do, does, am ) not like snakes. 6 Fred doesn't ( use, uses ) the Internet.

(2)と(6)の回答と解説をお願いします！ 急ぎです！

く島根) B問題 16 次の各文の( )内から適適するものを1つずつ選び,その記号を○で囲みなさい。 **(1) Thank you for a wonderful evening. I really(ア enjoyed イ had エ spent) it. Who (ア teach イ teaches ウ teaching エ is a teacher) me English?<土浦日大> く秋田) ウ played く茨城) く同志社> イ usually does ウ usually is doing エ is usually done) his wく青山学院> い。 栃木) **(3) Jiro (ア usually do homework before dinner. エ is reading)a book when I く早実> day 渇) (5) The city he (ア visit イ visits ウvisited エ visiting) ten years ago was Tokyo. 〈神奈川) く大阪女子学園> エ were) absent from school yester- *ま(4) She(ア reads イwas reading ウ has read came back from school. ウ were)a lot of milk in the cup. **(6) There (ア be イ was く広陵〉 イ is ウ was (7) My brother and I (ア am *(8) I(アparted イ divided ウshared エ gave) a room with Ken while I was in college. 〈灘〉 エ not came オ did く四条畷) day. イ do not came ウ were not come ★★(9) You (ア do not come く滋賀女子 10 Makoto is (ア swim イ swims ウ swimming) in the pool. (1) It (ア spends イ gets ウ takes エ costs) twenty minutes to walk to the station. not come) here last night. く芝浦工大附 <千代 (ア Are イ Were ウ Did) you watch television yesterday? イ is ウ are ★★★(12 く聖カタリナち エ be) kind to me. ★*★(13) You and Tom (ア am

画像下部の問8についての質問です。 図6で示されている数値は測定値としてみなし、測定値(有効数字を考慮するもの)の計算のルールに則って、"平均の速度は7.0m/s"というように小数点第一位まで解答するべきでしょうか。

動をしている。 時刻ち[s], な[s] における自動車の位置をそれぞれ x,[m], x, [m) とすると, この間の 変位 4x [m]は、, X2ーx,で示され る(図回)。単位時間あたりの変位 を平均の速度という。 時刻ち[s) からも[s) までの経過時間 4t [s] は,なーちであり,この間の平均 の速度 [m/s) は, 次のように表 基準点 位置x B O A 図回 自動車の位置の変化 自動車は,時間t。ーt,の間に x。ーx」だけ進んだ。 デルタ 4(デルタ)は, 注意 ①変化を表す記号 「4」 物理量の変化を表す。Axはxの変化量であり, 4×xを意味しない(ギリシャ文字©p.261)。 の時刻と時間 時刻は,ある瞬間における時を 表し,時間は,基準となる時刻からある時刻ま での幅を表すことが多い。 n elocity される。 [mt Ax B/ ひミ も-ち 17.0|2 16.0 ニ At 傾きは AB 間の平均の 速度に相当 式(3) において, なを限りなく ちに近づけたとき, その平均の速 度を,時刻もにおける瞬間の速度。 12.0 接線 9.8| instantaneous velocity 8.0 Ax または単に速度という。 傾きは点Aに おける瞬間の 速度に相当 velocity 図6のグラフは,この自動車の 位置xと経過時間tとの関係を表 す。なを限りなくちに近づけた とき,直線 AB の傾きは, 点Aに おける接線の傾きに等しくなる (探究活動のOp.80)。 4.0 3.0}x At 0 1.0 2.0 3.0 4.0 5.0 時間t 図6 x-tグラフと速度 t。を限りなくちに近づけると, A, Bを通る直線 は, Aにおける接線になる。 分なめ x-tグラフと速度 直線 AB の傾き… 時刻t, からt。の間の平均の速度を表す。 点Aにおける接線の傾き…時刻ちにおける瞬間の速度を表す。 問 8 図6のx-tグラフにおいて, 時刻 3.0秒から 5.0秒の間の平均の速度と, 時刻 3.0秒における瞬間の速度は, それぞれ何 m/s か。 12 第1章 カと運動 位置x

誤りを訂正する問題です 教えていただきたいです🙏

Credit for the invention of springs a scientist which occupied the site of what is now Istanbul in Turkey. are traditionally given to Philo who lived about 250 B.C. in the Greek city of Byzantium,

(i)に入る英文が分かりません。 教えて頂きたいです。

Reading police chief William Heim had to figure out how to get the'same or better'policing out of a cmaller force, So in 2013 \he ( 2 )incrime'prediction'software made by PredPol,a Big Data *start-up hased\in Santa Cruz,Californiaa (i) The Reading 'police \officers could view the program's Wansontud goiwna conclusions as a series of squares, \each one just the size of two football fields, If they spent more time patrolling these squares) there was a good chance they would discourage crime, And sure enough, a year later, Chief Heim'announced that burglaries were down by 23 percent. (i )Unlike the crime-stoppers in Steven Spielberg's movie Minority Report, the cops don't arrest people before they'commit crimes、 Jeffrey\Brantingham, the UCLA'anthropology professor who founded PredPol,insistedthat the modeis blind'to race and ethnicity)/And unlike other programs, PredPol doesn't focus on the individualyinstead, it targets ( 3 ).The key inputs) are the typé and location of each crime and when it occurred.That seems(fair enough. And if cops spend more time in the high-risk zones) preventing **burglars and car thieves, there's good reason'to believe that the community benefits. a

この問題教えて下さい！お願いします！

Takashi is a member of the English club at a junior high school. He and five other members enjoy talking with the *ALT, Ms. White, in their club. She always says to the members, “Using English is the best way to *improve your English." One Sunday Takashi went shopping at a store near Chuo Station. After s shopping, he retumed to Chuo Station. When he was waiting for a train, ララ he saw a woman from a *foreign country. She was *looking around with a *train map in her hand. He *said to himself, “That woman needs help, and I want to help her. Does she speak English?” Then Takashi *remembered the words of Ms. White. He went to the woman and said, “Excuse me, do 10 you speak English?” She said, “Yes, I do.” He said, "( ① )” She said, “Yes, please. I want to go to Minami Station. Which train should I take?"" He said, “Minami Station? I'm going there, too. Let's go there together.”" They got on the *same train. Takashi said to her, “T'm Ikeda Takashi. Where are you from?”” She said, 15 “T'm Emily Brown. I'm from Australia. I came to Japan to see my friend.” He enjoyed talking with her on the train. Ten minutes later they got to Minami Station. Emily *smiled and said, My friend will meet me at this station. Thank you very much.” He said goodbye to her and went home. The next day Takashi had an English class. His English teacher, Mr. Ueda, 20 came to the class with Ms. White. Ms. White said to the students, “Yesterday (3)(3 )に入る最も適当な語句を次から1つ選び, 記号で答えなさい。 ア as old as you イ younger ウ older than you than you I old like you

この問題教えて下さい！お願いします！

Takashi is a member of the English club at a junior high school. He and five other members enjoy talking with the *ALT, Ms. White, in their club. She always says to the members, “Using English is the best way to *improve your English." One Sunday Takashi went shopping at a store near Chuo Station. After 5 shopping, he retumed to Chuo Station. When he was waiting for a train, he saw a woman from a *foreign country. She was *looking around with a *train map in her hand. He *said to himself, “That woman needs help, and I want to help her. Does she speak English?” Then Takashi *remembered the words of Ms. White. He went to the woman and said, “Excuse me, do 1o you speak English?” She said, “Yes, I do." He said, “( ① )” She said, “Yes, please.I want to go to Minami Station. Which train should I take? He said, “Minami Station? I'm going there, too. Let's go there together.” They got on the *same train. Takashi said to her, “T'm Ikeda Takashi. Where are you from?"” She said, 15 “I'm Emily Brown. I'm from Australia. I came to Japan to see my friend. He enjoyed talking with her on the train Ten minutes later they got to Minami Station. Emily *smiled and said. My friend will meet me at this station. Thank you very much.” He said Cに 20 goodbye to her and went honme. The next day Takashi had an English class. His English teacher, Mr. Ueda, came to the class with Ms. White. Ms. White said to the students, “Yesterday my friend came to this city from Australia. When she was at Chuo Station. a kind boy spoke to her in English and helped her. She said the boy looked (1)(0)に入る最も適当な文を次から1つ選び,記号で答えなさい。 ア Does this train go to Minami Station? イ Shall I help you? ウ Where are you going? エ Will you help me?

My aunt lives there and I stayed with her. という文について質問です。 with her で、祖母の家に となるのでしょうか？ with her home(house?)としないのはなぜか教えて欲しいです。

to the *city hal? Jane: Excuse me. How can I go Keiko: The city hall? Well, come with me. Jane: Thank much. My name is Jane. you very Keiko: My name is Keiko. 1 qo to a a junior high school in this *city. Where from, Jane? are you Jane: Im from *Sydney. Keiko: Oh, Sydney? I went to that city last year. My *aunt lives there and I *stayed with hep ·for two weeks. Sydney is a *wonderful city. I had a great time there. Jane: Good. I *came to Japan a month *ago. I'm staying in I okyo now. Im studying Japanese there. Keiko: Do Hike Japan? you Jane: Yes. I like Japan very much. Japan is very beautiful and Japanese people are *kind. · By the way, you speak English well. Keiko: At school. I like Jane: That's good. Keiko: Well, here we are at the city hall. Jane: Thank much, Keiko. Keiko: Youire welcome. my English classes very much. you very