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物理 高校生

この問題のイとロの解説をお願いします。 ちなみに答えはそれぞれC(2n-1)/4L,L(C+Vイチ)/C(2n-1)です

風がないときの音の速さを C [m/s]とする。 (A) 図1のように, 一様な太さのガラス管にビストンを取り付け開口端と閉口端と の間の距離r (m) を自由に調節できる閉管が地表に固定されている。閉管の開 口側にはさまざまな振動数 [Hz] の音を鳴らすことができるスピーカーがガラ ス管の中心軸上にある。スピーカーは台車に乗せてあり,台車はスピーカーを乗 せたままガラス管の中心軸上を左向きに一定の速さ V [m/s] で運動させること ができる。また,台車の速さ Vは音の速さCを超えないものとする 台車が静止(V =0m/s) しているとき,スピーカーからある一定の振動数 の音を鳴らして、ピストンを開口端の位置から右向きにゆっくり動かしながら共 鳴の位置の測定をしたところ,r=L [m] の位置でn度目(n21) の共鳴が 観測された。風は吹いておらずその影響はないものとし、 開口端補正は無視でき るものとする。 SM ガラス管 ピストン スピーカー 証 風) V AD 地表 音 さ 図1 さな風W の。 Am W -9Uちさるりす風 m (イ) スピーカーで鳴らしている音の振動数(Hz] をL, n, Cの中から必要なも のを用いて表せ。 O () 台車を一定の速さ V= V, [m/s] で運動させながら, スピーカーでは設問 (イ)と同じ一定の振動数の音を鳴らしている。このとき,ピストンを開口端の位 置から右向きにゆっくり動かしながら共鳴の位置の測定を繰り返したところ。 エ=ム (m) の位置で1度目の共鳴が観測された。LをL,n, C, V,の中か き ッ画

解決済み 回答数: 1
英語 高校生

答え合わせがしたいので教えてください

「I|次の文を読んで、あとの問いに答えなさい。( wのついた語は文末に注があります。 ns Sitting in the consultation room of a charming cosmetic surgery clinic in Washmgo. D.C., Hudson Young removed his mask under the satisfied gaze of his doctor. Like a grownns number of Americans, Young decided the right time to undergo plastic surgery was middle of a coronavirus pandemic, He knew he would have time to recover in the privacy ot his own home. The main reason, however, was that Young suddenly found himself face to face with his own image while participating in an increasing number of videophone and web A 「Its something new when you have to stare at your face for a couple of hours a day and there's only so much you can do with good lighting and good angles," Young said. The 52-year-old real estate agent had allready been a fan of cosmetic surgery. He had face lift, eyelid surgery and laser resurfacing for the first time in October. "When you see yourself on Zoom, you are shocked," he explained, as Dr. Michael Somenek examined his w barely visible scars. Young is far from the only one who has found himself disappointed with the reflection he has seen in the screen over the past year. Virtual consultations for cosmetic procedures have risen 64% in the United States since the beginning of the COVID-19 pandemic, according to the American Society of Plastic Surgeons. “We have seen an increase in the number of surgical cosmetic procedures that are directly related to Zoom," said Somenek, who has seen a 50% to 60% increase in customers. “I think the pandemic B has given everyone time to take care of those things that we've been putting off until later," explained Ana Caceres, who was able to work from home after C a plastic surgery operation she had wanted for a long time. She recovered at. her parents' house outside Washington after a December cosmetic surgery that helped her D deal with a source of insecurity she had had since adolescence. "I didn't have to days off, because I was still able to work from my bed with my lap-top," the 25-year-old said. “When life is going on and you have places to be, it's s0 easy to put things off," Caceres said, showing off a dress she says she now has the confidence to wear. And she has scheduled more cosmetic surgery. Her surgeon, Dr. Catherine Hannan, says consultations at her clinic in the IIS comit1 E have nearly doubled since the beginning of the pandemic. "Our patients have more lines because the last vear has been so hard. A face or boay change can have a psychological

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数学 高校生

ここわかる方いますか?

標準問題 1日本語の意味に合うように, ( )内に適切な語を入れましょう。 1.私は冷たい飲み物が欲しいです。 Id like ( ) drink. 2.ダニエルはその車を買うために一生懸命仕事をしている。 Daniel is working hard in ( ) buy that car. 3.彼らは何度も試みたが,結局大失敗に終わった。 dolom They tried many times ( 4.その話はうますぎて本当だとは思えない。 ) good( ) fail miserably. That's( ) be true. 2日本語の意味に合うように,( 文字で始めています。 )内の語(句)を並べかえましょう。ただし,文頭にくるべき語も小 き語も 1. 医者は私に長期の休養(rest)をとることを勧めた。 (take / to / advised / me / rest / a/ the doctor / long). 1odat 2. その知らせを聞いてとても残念に思った。 (was / I/the / sorry/ to / hear / news / very ). 3. 私の息子は成長して立派な医者になった。 (a/be/ good / doctor / to / son / my / grew /up). ot 0EL 03DI 32つの文がほぼ同じ意味を表すように,(aic)内に適切な語を入れましょう。 1. I woke up and found myself in the dark. I woke )myself in the dark. (不定詞を用いて) up 2. Tom's grandfather is rich enough to own the baseball team. Tom's grandfather is ( LCAJ) (でー) ) he can own the baseball team. 9d 3. Latin is so difficult that we cannot master it. 途+ ot Latin is ( ) difficult ( ふ ( ). ※ Latin ラテン語, master 修得する 開き +30 bissta sd 同+ qlad toanso 開 + og ai91adT 開 +aon ei J1 +0 開 + 53

未解決 回答数: 1
英語 高校生

168の問題のsuchってどーゆー意味ですか?また168の文章構造を教えて頂きたいです!

171 仕事を終え, ピーターは帰宅し, 熱いシャワーをゆっくり浴びた。 172 その夜は雨が降っていたので, 私たちは月を観測できなかった。 170 何を言っていいのかわからなかったので, 私は黙ったままでいた。 70 ● Part1 文法 くセンター試験) 166 She was seen ( ロロロ 2going ③ gone ④ went の go Point 054 入 )in English. 167 I could not make myself ( の to understand 3 understanding 2 understand の understood ロロロ 大阪国際大) 「S 語 myself 0mo 中央大) ロロロ 共 Point 055 また待·由· 唐きかえ/ られ いが文中(通 を は億用的なものを 169 ロロロ く清泉女子大) の の Coming ② To come 3Icome 4 Came 入』 )what to say, I kept silent. J8 aloof Josl dalawr 180d 2 Knowing not の Known 得 170( CO 998 19 分国構文て 分同 3 O Knowing 3 Not knowing 〈常葉大) 化し 171 ( ロロ ) his work, Peter went home and took a long hot shower D All finishing 3 Having finished す する。 (4p52 率日 2 Finished の Have finishing 〈慶態義塾大) 入。 10 分詞を >分調 172 ( ) that night, we could not observe the moon. 立 O Having rained 3It having rained 2 It was raining の Raining boaolo 赤 重 11 完7 〈津田塾大) 10_pesL y agomk 文 Ised 172 独 tob A 19d 0 振合人鉄アお 開会対間so 5 orasn vun で 166 彼女は,ボーイフレンドと劇場に入っていくところを見られた。 167 私は,英語で話を通じさせることができなかった。 168 通りの騒音がひどかったので, 私は自分の声を届かせられなかった。 169 大都市出身なので, 私は街の恒騒をあまり気にしない。 Sar maké AointO 1054 St 0r00 167 make oneself 108 makeoneself Pana5s お好ちが 句とし 開するとき! 発件(…ならば/

解決済み 回答数: 1
英語 中学生

(2)を教えてください🙇‍♀️

Activity 4 Make a * temporary bed with cardboard Activity 5 Learn useful Japanese words and how to Activity 2 Experience earthquakes in a special car call 110 or 119;only for foreign people Tikari : Hello. Ms. Bell. We are 12:00~ Lunch(Try emergency food) going to have evacuation drills next Sunday. What should we do Schedule Opening Ceremony eters aayl o Date and Time Sunday September 1st 9:30~15:30 O Evacuation Place Tsubame Elementary School 9:30 Ken 10:00~ Activities Ms. 1 13:00~ Activities A Closing Ceremony 15:00 s. Bell: Evacuation drills? No. 5 Can anyone go? You can choose one activity at each time, Hik Activities en : Of course. Here is the Activity 3 Practice how to use an AED 0 Time 10:00~11:00 Ms. olo poster about the drills. We are going together. 1:00~12:00 O 0 O 13:00~14:00 10 14:00~15:00 lo (注) Would you like to come 10 口(1) with us? yun : We're going to meet at Midori Park at nine. If you come by that time, we co. together. eari :What shall we do for lunch? 15 :Well, Ill get some sandwiches at the convenience store on the way. 口に Bell: B Look at this. Let's try some emergency food. ari : Why not? Do you know what kind of food we can try, Ken? : No. Umm Cup Ramen? ri : No, I don't think so because 20 『n: Yes, it may be difficult after big natural disasters. Anyway, we will know on the do. :Ms. Bell, do you often have natural disasters in your country? Are they different+2 Bell: Yes, we do. I can only talk about my hometown, but from my experience CHID earthquakes are bigger here, I think. After I came to Japan, there was a bia earthquake. I was very surprised, and didn't know what to do. i: Then, why don't you do Activity 25 あ You have already experienced a at at TOTAL natural disaster, but you can learn how to protect yourself. 2ll: C I will do that. So, in the event, we can experience four kinds of activities. What are you going to choose? : Umm. Let's see. I'm interested in AEDS. I want to know what they are like. 30 : Oh, you don't know abóut them! They are used to save people's lives. : Of course I know, but I just wtant to try them because I've never touched them. :I took the course last year, but I'll try it again. II when we are in an emergency. 7:Iagree. Can all of us take part in the same activity together? 35 :I join the same activity with my family every year. This year we are going to learn how to make beds we can use in evacuation places in the morning. After that, I will be free. ;Tam going to help with the fire drills as a volunteer.

未解決 回答数: 1