運動量の問題です。 5ｇのボールが北に5m/sで進んでいて、2つ目のボールとぶつかります。2つ目のボールも5gで、最初は動いていません。2つ目のボールのぶつかったあとの速度は4m/sです。(向きは分からない) 画像にあるようにふたつのボールの位置は少しズレています。(弾性... 続きを読む

0.00573 A 5-gram marble moving at 5 m/s [N] collides with a second marble in an off-center collision. 0005 Suppose the second marble has a mass of 5 grams and is initially at rest. The collision is elastic and the final speed of the second marble is 4.0 m/s. 4) What is the final velocity of the first marble? W t N Pi= Pf KEKEf Va5m/s 5 → (0.005) (5) VF-3 2 f 70025 2 m² + mavi = mivi+m. v 1/2 ½ + (0.005) (5)² = = (0.005) V₁ + ½ (0.005) (4) 0.0625= 0.002525 + 0.04 0.0225-0-0025 Vif² V25 = 9 Vzg = 3 m/s 3 8.025 4 ? Va=0 V8 = 4m/s P = (m,vif) + M₂ Vz f

高校受験を控える弟の英語のテストなのですが、回答がなくて、どなたか回答案をくださりませんか？

7 次の(1),(2)の英文を読んで、それぞれの問いに答えなさい。 (1) ユタカ (Yutaka) とジョージ (George)は, 2人の住むみつば市 (Mitsuba City) について調査し,英語でプレ ゼンテーション(presentation)を行いました。 ユタカがスライド(slide)を使って発表をしています。 Hello, I'm Yutaka. I live in Mitsuba City and have lived there since I was born. There are some big parks in the city, and I often played in them with my friends when I was a child. I like my city very much. people than before. Look at Slide 1. Last month, I saw news about Mitsuba City on TV. It said that our city had fewer This shows the number of people in Mitsuba City. There were more than 300,000 people in 2000. The number became larger until 2010, but after that, it started to decrease. In 2020, about 280,000 people lived there. Why did the number of people become small? To find out the reasons, I read some books and checked some websites on the Internet. I got some ideas. Look at Slide 2. This shows the number of people in Wakaba City and Aoba City. These cities are next to Mitsuba City. You can see that these two cities had more people in 2020 than in 2000. In fact, Wakaba City started some plans to help parents in 2014. For example, parents don't have to pay money when they take their sick children to the hospital. This means parents can take care of their sick children ( A ) worrying about money. In Aoba City, a new train station was built in 2008. Since then, the city has more convenience stores, clothes shops, and restaurants. Living in Aoba City became more convenient, so more people started to live there. Look at Slide 3. You can see the number of each type of shop was larger in 2020 than in 2000. Now, Aoba City has become one of the most popular cities among people. Mitsuba City is a good city, but I don't think it has many attractive points. Parents still have to pay a lot of money to take care of their sick children. Also, there are not many shops and restaurants in the city. I think Mitsuba City should have more attractive points like Wakaba City and Aoba City. I want more people to live in Mitsuba City in the future. Slide 2 Slide 3 (people) 180,000 Covenience Stores 170,000 160,000 Clothes Shops 150,000 Restaurants 140,000 2000 2005 Wakaba 2010 2015 2020 --- Aoba (year) 0 10 20 30 40 50 (number) ■ 2000 m 2020 (注) be born 生まれる play 遊ぶ decrease 減少する in fact 実際は attractive 魅力的な find out take care of ~ news ニュース ~を探り出す ~ 〜の世話をする fewer より少ない website ウェブサイト convenient 便利な point -5-

これのA1とA2の答えの書き方を教えてください🙇⋱

7-1 Q1. Can people enter the gallery at 17:10 ? AI (17時10分から展示室に入れますか?) (はい、入れます) Q2. What showd students show if they want to get a discount? (割引き受けたい場合、学生は何を見ればいいのですか?) A2. (写真付き身分証明書を見せればいい。)

ここでのall weekdays as（as 名詞 as）はどのような影響が文章にあるのでしょうか？？ regardless以降は副詞節で、TRT~daysの訳が 「TRT配達サービスは全ての平日と同じくらい通常営業日を扱う」 これを意訳すると 「TRT配達サービスは全て... 続きを読む

] 6. With regard to home delivery, TRT Delivery Service treats all weekdays as ------- business days regardless of national holidays. (A) normal (B) normally (C) normalize (D) normality heqxe (A) eziheque (8) eeenheqxe (0) Vheque (a)

文法（関係代名詞）について質問です！ 1つ目の下線は，がつくのに2つ目には，がつかない理由を教えてください！制限用法、非制限用法の区別がわかりません、、

CD 35 5 10 15 D 20 <1> G oodbye, Mr. Chips is the story of a well-loved teacher at a boys' school in England. Chips, whose real name was Chipping, taught the classics at the fictional Brookfield School, which was based on the Leys School in Cambridge. Chips was a fresh-faced new teacher when he started at Brookfield in 1870. He was determined to show the students that he would not let them misbehave. The first time he watched students in the large hall during a study period, there were over 500 students waiting for the chance to tease the new teacher. He heard someone slam down the lid of a desk. "You, over there. What's your name?" "Colley, sir." "All right, Colley. One hundred lines, as a punishment." Chips had shown the students that he would make them behave how he wanted and that he was not a weak teacher. 3 Years later, after leaving school, Colley became an important person in the City of London, and his son entered Brookfield. "You know, your father was the first boy who I punished as a teacher here 25 years ago, and you are getting the same punishment," he said to the son, and the class was filled with laughter. Later even Collo's and Chi.

この（1）の2次不等式がわかりません。 教えてほしいです。

×1F ホーム X S サクシード数学1+A|数研 × SB問題399 サクシード数字 × ChatGPT oks/slide_viewer.html?id=S22MHMSC1A_s&sub=ma#page=22MHESC1m399 B問題399 399 次の2次不等式を解け。 ただし, αは定数とする。 *(1) x2+(a-1)x-a>0 (2)x2-2ax-3a2≦0 オプション学習ツール 学習 Q + 消しゴム 拡大

動名詞が難しくて分かりません、 教えてください🥲

演習 1. In this country, ( ) your nose in public is considered impolite. (東海大) 1 blew ②blow 3blown blowing gaiyil 2. Why don't you think about ( ①1 go to avil ) the festival tomorrow? (共立女子大) 2 going to 3 gone to to go to M $20 3. When Camilla had dinner with Logan, she was angry at ( ) on his cell phone throughout the meal. ①for speaking he spoke ③he speaking Sexed (gaish ged (大東文化大 ) Devils his speaking □ 4.あんなに簡単な質問に答えることができなかったことが恥ずかしかったです。 語順整序 I was ashamed (able / of /answer/not/to/being) such an easy question. vd (Juodjiw\viododal sdd ( 九州国際大) antied) of aldiaaoqmi er ( 京都女子大 ) having noticed to gaiver lobom nomast as 4 to notice buorq ai IliH.81M 320 5. I left for New York without (-) by anyone. ①being noticed ③noticing bu of galool exs nerblido ad ☐ 6. She is proud that she was a teacher of mathematics at a college. XÀ» - = She is proud of ( college. 998 of ) ( 998① ) a teacher of mathematics at a (東京理科大)

高１数と式です。㈢がわかりません。 なんでこの場合分けになるのかもわからないし、どこからこの範囲が生まれてるのかもよくわかりません! 教えていただきたいです、！

版 mart.co.jp KOKUYO S&T Co. Lid 1010-2014 数と式 5 でA→B→Cの順に進み、点Cで止まる。 Qは毎秒2/αの速さで A→D→C→B→Aの順に一周し点Aで止まる。 AB=4a, BC=3a (a>0) 長方形ABCDがある。 点P, Qは 頂点Aを同時に出発し、 長方形の周上を動く。 Pは毎秒 αの速さ 3 46 B C (1) 出発してからx秒後に点P, Qがともに辺BC上 (両端を含む) にあるようなxの値の範囲 を求めよ。 2015 (2) 128x815 3月 あるとき,△BPQの面積が含αとなるようなxの値を求めよ。\\ 出発してからx秒後に点Pが辺AB上 (両端を含む)に, 点Qが辺BC上 両端を含む) 出発してからx秒後に△BPQの面積が今となるようなxの値を求めよ。 6-4521115 2 la - 05201434 x (lla 3x) 42 fax - 2² ²x² - 4a²

多様体を構成するために、位相空間に完全アトラスを導入するところで質問です。 完全アトラスを導入するメリットとして、この文章の下線部を「異なる座標系を用いたのに同じ計算ができてしまうという問題が解消される」解釈したのですが、そこがよくわかりません。座標系を変えて計算する... 続きを読む

1 Two n-dimensional coordinate systems & and ŋ in S overlap smoothly provided the functions on¯¹ and ŋo §¯¹ are both smooth. Explicitly, if : U → R" and ŋ: R", then ŋ 1 is defined on the open set ε (ur) → ° (UV) V and carries it to n(u)—while its inverse function § 4-1 runs in the opposite direction (see Figure 1). These functions are then required to be smooth in the usual Euclidean sense defined above. This condition is con- sidered to hold trivially if u and do not meet. Č (UV) R" Ĕ(U) n(UV) R" S n(v) Figure 1. 1. Definition. An atlas A of dimension n on a space S is a collection of n-dimensional coordinate systems in S such that (A1) each point of S is contained in the domain of some coordinate system in, and (A2) any two coordinate systems in ✅ overlap smoothly. An atlas on S makes it possible to do calculus consistently on all of S. But different atlases may produce the same calculus, a technical difficulty eliminated as follows. Call an atlas Con S complete if C contains each co- ordinate system in S that overlaps smoothly with every coordinate system in C. 2. Lemma. Each atlas ✅ on S is contained in a unique complete atlas. Proof. If has dimension n, let A' be the set of all n-dimensional coordinate systems in S that overlap smoothly with every one contained in A. (a) A' is an atlas (of the same dimension as ✅).

教えてください、、

8. (2 marks) A water tank of dimensions 2 m x 1.5m x 3m contains water up to 2 m as shown below. 2 m water 1.5 m 2 m 6m³ water A solid rod of dimensions 0.5 m x 0.3 m x 3m is lowered into the tank as shown below. h 3 1.5 m 2 m