Indeed, all of our interviewees emphasised the importance of touching with their feet – helping them to scan and perceive the environment... 続きを読む

波の分野のうなりについてです 画像の10行目からで、「２つの音源の振動数をそれぞれf1,f2〔Hz〕とすると、周期T0〔s〕の間に２つの音源から出る波の数f1T0個とf2T0個は波1個分ずれる」という部分がわかりません 必ず1個分ずれると言い切れるのはなぜなんでしょうか…？

E うなり 振動数がわずかに異なる2つのおんさを同時に鳴らすと, ウォーン, ウォーンと音の大小が周期的にくり返されて聞こえる(図39)。このよう な現象をうなりという。うなりは2つ beat の音波が重なりあうことによって生じる。 1秒当たりに生じるうなりの回数fを 図40をもとにして求めよう。 うなりが 1回生じる時間(うなりの周期) を To [s] と すると, 1秒間では 回うなりが生じ To る。したがって, f と To の関係はf= 1 To となる。また,2つの音源の振動数 をそれぞれ fi, fz [Hz] とすると,周期 To [s] の間に2つの音源から出る波の数 fiTo 個とf2T。 個は波1個分ずれるので |fiTo - fzTo| = 1 (17) よって AU B "O BU 1 うなりの回数 f = \f-f2| (18) O み 空気の圧力変化 O 44 第3編 波 同位相 図 39 おんさによるうなり 動数の等しい2つのおんさの一方 におもりをつけると、枝が少し重く なり,振動数はわずかに小さくなる。 逆位相 (18) 式を導く To > 0 であるから, (17) 式より |f₁-f₂| To=1 firo 個の波 (この図では5個) よってTo= これを f=1に代入して f=/=1fi-fal To fT｡ 個の波 (この図では4個) うなりの周期 To[s] 1 Tf₁-f₂l 同位相 時間 VA ●図 40 振動数がわずかに異なる2つのおんさによるうなり 合成波の振幅は,同位相で重 なるときに最大となり, 逆位相で重なるときに最小となる。 10

英語 知覚動詞 4番のcoldはどこに入るのでしょうか？

C 2. If hear / you / name / called / your ), please raise your hand If you hear your hame called 3. Tomoko crossing / saw / the street / two cats) in the morni Saw two cats Crossing. the stree 4. Jiro ( his leg / cold / felt / touching something ). felt something touching his leg 5. I on someone / the door / heard / knock). heard someone. knock on the door.

問題を解いたのですが答えが分かりません( ˘•ω•˘ ).｡oஇ 教えてください🙏

4 「大人になると失われる赤ちゃんの能力を維持する方法 These recent studies have certainly changed the traditional image of babies: they know nothing and cannot do anything. If we try to sustain babies' abilities into adulthood, we may be able to improve our capacity as human beings. For example, if Japanese babies are exposed to English along with Japanese, they may be able to hear the difference between "r" and "1" sounds even when they become adults. 8 11 five senses !? 日本の赤ちゃく Part 7 many 10 Parents in the U.K. often make "treasure baskets" for their babies. They are baskets with items that will appeal to babies' five senses. Seeing, touching, hearing, smelling, and tasting may stimulate children's sensitivity to their environments. Parents believe that treasure baskets will help babies keep their innate cognitive power as they grow up. 9 These are just two examples. It is time that we should look at babies' capacity more carefully so that we can learn from them and realize our potential more fully. 15 cognitive power 5 Ata 15 sustain [sǝstéin] adulthood [ǝdálthùd, adal capacity [kəpæsəti] Cc E basket(s) [bæskit(s)] item(s) [áitəm(z)] appeal [ǝpí:]] stimulate [stímjulèit] sensitivity [sènsətívəti] innate (inéit] fully [fúli] C

解説では直接aの範囲を求めにいってるのですが、 〜以外がこの問題の解、みたいに補集合(?)のような考え方では解けないのでしょうか？ もし解けるとしたらその条件式を教えて頂きたいです🙇‍♀️🙏

214 00000 基本128.129 重要 例題 130 2次方程式の解と数の大小 (3) | 方程式x2+ (2-a)x+4-2a=0が-1<x<1の範囲に少なくとも1つの実数解 をもつような定数aの値の範囲を求めよ。 指針 条件が 「-1<x<1の範囲に少なくとも1つの実数解をもつ」 であることに注意。 大きく分けて次のA B の2つの場合がある。 ④ -1<x<1の範囲に 2つの解をもつ 重解は2つと考える) B -1<x<1の範囲に, ただ1つの解をもつ 方程式の2つの解をα, β (α≦β) として, それぞれの場合につ いて条件を満たすグラフをかくと図のようになる。 ® は以下の4つの場合がありうるので注意する。 ® [2] ® [3] WAV は α B x -1<x<1の範囲に1つ、 x<-1 または1<x の範囲に1つ 解答判別式をDとする。 f(x)=x2+(2-a)x+4-2a とし, 2次方程式f(x)=0 の x= y=f(x)のグラフは下に凸の放物線で, その軸は直線 a-2 である。 2 [1] 2つの解がともに-1<x<1の範囲にあるための条 件は, y=f(x) のグラフがx軸の1<x<1の部分と異 なる2点で交わる, または接することである。 すなわち,次の (i)~(iv) が同時に成り立つことである。 (i) D≧ 0 (ii)軸が-1<x<1の範囲にある (iii) f(-1)>0 (iv) f(1) > 0 (i) D=(2-α)²-4・1・(4-2a) =α²+4a-12=(a+6)(a−2) α=-1 D≧0から (a+b)(a-2)≧0 ゆえに a≤-6, 2≤a -1 B1 x x=-1と1<x<1 の範囲に1つ よって -2<a-2<2 ゆえに 0<a<4 (2) (i) f(-1)=-α+3であるから よって a<3 (ii)軸 x = - = a22 について-1<2<1 2 -a+3>0 A [1] B [4] BO -1<x<1 の範囲に2つ |x= β=1 -1a1 x=1 と-1<x<1 の範囲に1つ 2-a 2.1 条件は 「少なくとも1つ」 であるから, y=f(x) の グラフがx軸に接する 場合, すなわち, D=0 の場合も含まれる。 [1] 軸 |D=0/ 1 D>0 X

この4番の問題の答えがなぜ①になるのかを教えてください！不定詞の問題です。

6 入試問題に Try ( )に入る最も適切な語句を 1. The doctor advised him ( ) too much. 1 not eat 2. This city is easy 1 for reaching 2 to not eat ) by public transport. 2 to be reaching 3. They have three dogs to look after, not to ( 1 mention (2 clarify your thinking and ( confront E Hints 2. public transport [#] 2 confronting 3 to eat not Do not 3 environment 3 to have been reached ) the cat and the bird. 3 speak 3 to confronting 4 not to eat (大阪経済法科大 say 4. Take some time and write down your thoughts, worries and desires. It's a powerful way to ) your fears. (フェリス女学院大) 4 to be confronted transport 4 tell (立命館大) 4 to reach (金城学院大) D 4. clarify 「~を明らかにする」 confront ｢〜に立ち向かう」 Check List □ call / phone 〜に電話をかける □package 小包 □ deliver 〜を配達する □ collect ~を集める lappear ~のように見える politician 政治家 □ be full of ~ ~でいっぱいである be likely to do ~ miss take action E solve fall in love with thought

solution to〜で減点されるのはなぜなのでしょうか。 教えて下さい。

ていな ●点減 さい) 点減 みな 出) 点滅 みな 駅出し 「解決策」の設 (O) solutions (O) ways (x) solution_/_/ way. ･･･1点減 (無冠詞単数は不可) (○) how to (minimize...) (x) plans / measures/answers ･･･ 2点減 <RAD ･･･ 2点減(「解決策」の誤り) ･･･ 2点減 ・「･･･を最小化するための」 の誤訳 (○) (solutions) for minimizing.... (x) (solutions) to minimizing .. ･･･ 2点減 (to は for とすべき) (O) (ways) to minimize.... (O) (solutions) so that get as small as possible (O) (ways) in which ... become minimal (x) (ways) to reduce ... at a minimal level ･･･ 2点減 (toa minimal level であれば可) (x) (ways) to decrease... to its minimum [thoir] minimum (L) environg (x) the ef enviror ｢これらのプロ 場合 (O) the proje (O) the these (O) the (x) the prog ・「これら (Q) th (x) th 「環境」 (Q) tl

中学生 英語 長文です。 このような長文が全くと言っていいほど分かりません。 どのように解き進めていけばいいのでしょうか。 写真は愛知県マーク模試第4回のものです。

第4回愛知・中3英語 4 次の文章を読んで あとの (1)から(5)までの問いに答えなさい。 Where do you usually buy things? Do you go to stores near your house? Do you visit websites and click "buy now"? Today, many people order some products through the internet and have them delivered to their houses. It's convenient to get delicious food or interesting goods from all over Japan without (A) far from home. Then, have you ever thought about the system of carrying these products? Trucks are the main way of transportation. There are different sizes of trucks and they can go to all types of places. Carrying products by truck is necessary for people's lives. However, they produce a lot of CO2. They produce less CO2 than before and they're becoming more eco-friendly, but just using such trucks is not enough to reduce CO₂ because more trucks are needed to carry more products. To solve this problem, the modal shift began. The modal shift is to change the way of transportation partly from trucks to trains or ships. CO2 produced by trains or ships is less than that by trucks. When you think about the environment, it is better to use trains or ships. There are other good points of the modal shift. When products are carried by train or ship, the cost of transportation goes down. Trains or ships can usually carry more products than trucks. So, I needed to the cost / carry / decrease / will products I as a result. Another good point is the smaller number of operators. Each truck needs one driver. After all, a lot of truck drivers are needed. Trains and ships can carry more products than trucks and they need fewer operators. 1 There is, however, a disadvantage of the modal shift. Trains can move only between stations, and ships can move only between ports. They can't carry products from factories to shops or homes. Products are moved from trucks to trains or ships and from trains or ships to trucks. This takes a lot of time. The modal shift is not a good way to carry fresh products fast. As for ships, When it is bad and they don't move, the products are not carried on schedule. (2) The need for transportation is increasing. And now, there are not enough truck drivers to carry products. It is necessary to change the system of transportation to solve the environmental problem. (注) click buy now" 「今すぐ買う」をクリックする order を注文する have delivered ~を届けてもらう convenient system システム transportation M eco-friendly 環境にやさしい partly 部分的に cost reduce ~を減らす solve ~を解決する modal shift モーダルシフト operator # disadvantage 不便なこと port factory I need t environmental 環境の on schedule 予定どおりに

英検準二級のライティングです。 文法的におかしい部分などを教えていただけると嬉しいです🙇🏻‍♀️ （特にrecentlyの位置があっているのか不安です） あと、一つ目の理由と二つ目の理由の長さのバランスが悪いのは減点されたりしますか…？

I think Communication e-mail is a better than letters. I have First, A letter the paper two reasons. isn't use mean some papers. But, good enviroment. Because, The paper made from We using the peper that we break down Second, Many people have smartphone recently. So, I e-mail is better than woodch is same mean forest. of a think letters. (60語) LO 5 10 15

④と⑤の日本語訳教えてください

Nancy: thro 4 That's a good idea. It's a kind of “recycling”. We ( usually / away / people / which / we/ still / can / don't / use / things). often sell old things which we don't need and buy old things used by other people. And we can save money and reduce garbage. (She drinks water.) We Reiko : Yes. Everyone in all countries must study how to save the earth. Nancy We should think more about environmental problems. 15 Water in Japan is very nice. Water is one of the most important natural resources on the earth. 20