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物理 大学生・専門学校生・社会人

至急!!わからないので教えていただきたいです!

平面から30°傾いた斜面X と, 45°傾いた斜面 Y が水平面の両側になめらかにつな がっている。水平面上のBC間には摩擦があるが, それ以外の水平面および斜面 X,Y は なめらかである。 BC間の距離は2hで, 小物体とBC間の水平面との間の動摩擦係数は 4 である。また、小物体の運動は同一鉛直面内で行われるものとし、 重力加速度の大き さをgとする。 下図のように、斜面X 上で水平面からの高さがんの点Aに質量mの小物体を置き, 静 かにはなしたところ, 小物体は斜面上をすべり下りて、 水平面上を点Bへ向かった。 斜面 X 斜面 Y A m h 小物体 1 2 - mg 2 30℃ 1ERSON √3 2 2h (1) 次の文章中の空欄 ア エに入れる式として最も適当なものを,下の①~⑨の うちからそれぞれ一つずつ選び, 番号で答えなさい。 但し, 同じ番号をくり返し選んで もよい。 小物体が斜面上をすべり下りているとき, 小物体にはたらく重力の斜面に沿った方 向の分力の大きさはア垂直抗力の大きさはイである。 このとき, 小物体が斜 面上を点Aから最下点まで移動する間に重力が小物体にする仕事はウ 垂直抗力 が小物体にする仕事はエである。 mgh √√3 2 B 水平面 mg mgh mg C ⑧ mgh 50 (3) 28.3 ④2mg ⑨2mgh 245゜ 8110 (2)点 B に達する直前の小物体の速さはいくらか。 最も適当なものを、次の①~④のうち から一つ選び、番号で答えなさい。 high ②√gh igh 0 4√2gh

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英語 高校生

答えに解説がなくて困ってます。 下の長文を翻訳してください。

〔Ⅰ〕 次の英文を読み. 設問 1~21 に答えよ。 Sandy lives in an apartment so small that when she comes home from shopping, she has to decide what to move out to make room for her purchases. She struggles day-to-day to feed and clothe herself and her four-year-old daughter on money from freelance writing jobs and helping neighbors. (2) Her ex-husband has long since disappeared down some unknown highway, probably never to be heard from again. As often as not, her car decides it needs a day off and refuses to start. That means bicycling (weather permitting), walking or asking friends for a ride. 13 The things most Americans consider essential for survival- a television. microwave, big freezer and high-priced sneakers are far down Sandy's list of "maybe someday" items. (5) Nutritious food, warm clothing, an affordable apartment, student loan payments, books for her daughter, absolutely necessary medical care and an occasional movie eat up what little money there is to go around. Sandy has knocked ) more doors than she can recall, trying to find (7) a decent job, but there is always something that doesn't quite fit-too little experience or not the right kind, or hours that make child care impossible. Sandy's story is not unusual. Many single parents and older people struggle with our economic structure, falling into the gap between being truly self-sufficient and being poor enough that the government will provide assistance. What makes Sandy unusual is her outlook. "I don't have much in the way of stuff or the American dream," she told me with a genuine smile. "Does that bother you?" I asked. "Sometimes. When I see another little girl around my daughter's age who has nice clothes and toys, or who is riding around in a fancy car or living in a fine house, then I feel bad. Everyone wants to do well for their children." she replied. "But you're not angry?" "What's to be angry (9) and I have what is really important in life," she replied. "And what is that?" I asked. (10) "As I see it, no matter how much stuff you buy, no matter how much )? We aren't starving or freezing to death. (11) money you make. you really only get to keep three things in life." she said. "What do you mean by 'keep?" (12) "I mean that nobody can take these things away from you." "And what are these three things?" I asked. "One, your experiences: two, your true friends; and three, what you grow inside yourself." she told me without hesitation. (13) For Sandy, "experiences" don't come on a grand scale. They are so-called ordinary moments with her daughter, walks in the woods, napping under a shady tree, listening to music, taking a warm bath or baking bread. Her definition of friends is more expansive. "True friends are the ones (15) who never leave your heart, even if they leave your life for a while. Even after years apart. you pick up with them right where you left off, and even if they die, they're never dead in your heart," she explained. 16 ) to each of us. (17 As for what we grow inside, Sandy said, "That's ( isn't it? I don't grow anger or sorrow. I could if I wanted to, but I'd rather not." "So what do you grow?" I asked. Sandy looked warmly at her daughter and then back to me. She pointed toward her own eyes, which were shining with tenderness. gratitude and a sparkling joy. "I grow this." From the book Chicken Soup for the Woman's Soul by Jack Canfield. Mark Victor Hansen. Jennifer Read Hawthorne, and Marci Shimoff. Copyright 2012 by Chicken Soup for the Soul Publishing, LLC. Published by Backlist. LLC. a unit of Chicken Soup for the Soul Publishing. LLC. Chicken Soup for the Soul is a registered trademark of Chicken Soup for the Soul Publishing, LLC. Reprinted by permission. All rights reserved.

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数学 中学生

英語得意な方!!! ①〜⑤の英文の添削?をお願いしたいです! 間違っている文法や単語、何を言いたいのか分からない所などなど、、、多分大量にあります!笑 なんか明日の中間テストでここから15点分くらい出るらしくて🙋🏻 1つだけでも全然大丈夫です!よろしくお願いします!🙇🏻

疑問文は使わない 3年生で習った文法を一つ使う 英作文チャレンジ 1.次の意見に対し、 あなたの考えを30語以上で書きなさい。 1 When students have free time, they should read more books. 学はひまなとき、もっと本を読むべき students should read books at home when it rains day! Play outside when it's sunny Reading books is not so much necessary "day". I want children to play outside. 2 When we learn a foreign language, we should study abroad. 37551731NZ. I think that if you make friends abroad, you will want to Study English more. You need study a littele before go abroad. English helps all people live better. ③ Watching TV is good for children. テレビを見ることは子どもにとっていいことだ watching TV is not good for children because the problem is there are not many children Playing outside. TV Show us a lot of things, but children should playing outside that We can't live without computer. コンピューターなしでは生きていけない. There are a era we didn't have computers so we can live without computer, but It is not useful and fan. It is excited for all people to cuse computer. ⑤ Junior high school students should wear school uniforms, 中学生は制服を着るべき Junior high school students should wear school uniforms because around me people you are a Junior high school students. You know School uniforms has been wearing for many years liell.

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英語 高校生

この問題教えてください

かつ わ 身 フ Practice 日本語に合うように,( Hop に適切な語を入れましょう。 学校を卒業したあとも,たえず新しい目標を設定することが大切です。 ) for you to ( 1. It is ( from school. ) a new goal continually even after you ( ) 2. 私は1週間に1回くらい、自分のブログを更新します。 I( ) my own blog about ( ) a ( ). 3. 国民の3分の2以上がその新しい政策に反対しています。 More than ( ) ( ) of the nation are against the new policy. ytio 4. 本を読めば読むほど,ますます多くのことを学ぶことができます。adidded The() books you read, the ( ) you can learn. WASH 000, Jis Juods lood lond visidid swisH Step 日本語に合うように,( 内の語句を並べかえましょう。 xonem Gashaqst no aslood mabiharedT Ons skala pod 1. 私たちのクラスのほとんど全ての生徒は、学校に弁当を持ってきます。 I OUTO ( almost / all / in / our / students / the) class bring lunch to school. 2. 彼女は、いつも自転車で学校に行きます。 She (always/bicycle/by/goes/s 3. クラスの約半分は、その話を理解できませんでした。San belduob. (about/class/could/ half / of / the) not understand the story. school to). stuoT and a do ei visidil » smaraiv fet 4. 中国の人口は, 日本の人口の約10倍です。 The population of China is about (as/as/large / of / ten times / that) Japan. (ASP) 日本語に合うように、 Jump 日本語に合うように,英語に直しましょう。 1. 私はたいてい, 朝コップ1杯の牛乳を飲みます。 2. 中学生の頃は,ほぼ毎週末,川に遊びに行っていました。 all avod 3. 私が予想していたよりも,たくさんの人がパーティーに参加しました。〈 take part in 〉 4. 天才とは, 1%のひらめきと99%の努力のたまものです。〈inspiration, perspiration〉 Hilw wol ore ared Booir

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