(4)(5)が分かりません。 教えてください🙇‍♀️🙇‍♀️

図に示す点A,B,Cは, 点Oを中心とする半径 [m]の円周上にあり, |_∠AOB=∠BOC=60° である。 強さE[V/m]の一様な電場を, 半径 OA に垂直な向き円 の面に平行に与える。重力加速度の大きさをg[m/s2] とする。 est~ 3+ (DSX DATA ON JOMBO 358 .5+ [m] ***H [m]x C B 60° 0 60° A E (0)5 do [站学大飴命立 (0.0)Q (1) この電場の中で,正電荷q [C] を帯電させた質量の無視できる小球 X を, 円周にそって 点Aから点Bまで, 外力を加えてゆっくりと移動させる。このとき, 外力が小球Xに 8位 する仕事 W1 [J] を求めよ。 (0 (2) 点Aにおける電位を0Vとすると、点Bにおける電位VB [V] を求めよ。 OFFRO (3) 次に (1) の小球X を 経路B→O→A にそって, 点Bから点までゆっくりと移動さ 魚 せる。このとき、電場が電荷にする仕事を,B→0間で W2 [J], O→A間でW3 [J] とし, 3 BO→A間の全区間で W23 [J] とする。 W2, W's, W23 をそれぞれ求めよ。 (4) つづいて、負電荷-9 [C] を帯電させた小球 Yを長さの絶縁のよい糸に取り付けて, 糸の他端を点0に固定する。 この状態で, 小球Yを点Cで静かにはなしたところ、円 16周にそって CA間を往復した。このことから,」を求めよ。ただし、小球Yの質量を エンジ[kg]とする。 華 135 >CHƆAATBÁCIA A MBOOÀ ČIά*** (5) (4) の小球Yの運動において,点Bを通過する瞬間の速さ [m/s] を求めよ。 来 ASS

(2)の答えの出し方教えてください🙇🏻‍♀️

BEE 例題 88 20個の値からなるデータがあり、そのうちの8個の値の平均値は 3,分散は 4,残り 12個の値の平均値は8, 分散は9である。 (1) このデータの平均値を求めよ。 824+96=120 96 124 170 6/4 ×(2 (28) 42 768 +72 768-840 -3/6 6 このデータの分散を求めよ。 9 x 8 = 22 84 48 120 20 fo. Fo 20132 120 S=84-36 = 48 120 6 er or S 64×12=768 108 42-36 +24 = 6 732 24 +108:132 132 20 (20 080 768-72:840 平均値 6 Z = 6 * (24-6)=324 18 (96-6) = 0 = 7² = 84 108 53₁ — x = 4 x=4 8 +32 140 S²₁x = ( 2 y = 9 x=32 y=108 140 ? 7 20 260 こ 08 22

至急！ 本文の下にある　６　６．　７．　の答えを教えて下さい!

Q. Listen and choose the best match for the picture on the right. Part 1 56 artificial intelligence inteled(a)ms/ handle(s) hend(a)l(z) deal dil/ assistant asEstant/ reply pla possible <pQ{:}xəbə]f? huge bjuds knowledge Fadlidy appropriate (apróxprist? seem istam/ safety st Sakura reads about the spread of AI. AI, artificial intelligence, handles a great deal information. It makes decisions like humans. Al is in many systems today. Voice assistant systems are one example. When ask something, the systems give you a quick reply. is this possible? They access a huge online knowled database. From this, they choose appropriate words make answers. The answers created by Al often seem: be just for you. This is because the systems are alwa collecting data about you. AI is also used in air conditioners, robot vacuu cleaners, car safety systems, and so on. They help lives a lot. Al seems to make everything possible. 6. this は何を指しますか。 6. They は何を指しますか。 7. this は何を指しますか。 1. a great deal of 12. "and so on 6. access の品詞と意味は? 7. database dentabes! 7-9-2 11. air conditioner fear kandif(a)nar! IPI vacuum cleaner vækjuam kita

漸近線を求める問題です、お願いします

8. The temperature, 0°C, of a cup of tea / minutes after it was placed on a table in a room, is modelled by the equation 0 = 18 +65e s Find, according to the n. el, (a) the temperature of the cup .. 18⁰ ℃ (1) (b) the value of 1, to one decimal place, when the temperature of the cup of tea was 35 °C. 35 = 18+ 65ē 7/8 -t/8 (3) ⇒19=65€ 7/65 lu (17/4)= -4/8 (c) Explain why, according to this model, the temperature of the cup of tea could not fall to 15 °C. HA (0,94) 720 N = A + Re en it was placed on the taki (8,50) 1>0 μ= A + Be 8 04-1 Figure 2 The temperature, μ °C, of a second cup of tea t minutes after it was placed on a table in a different room, is modelled by the equation Laverage the room temp 0 -18 where A and B are constants. Figure 2 shows a sketch of u against / with two data points that lie on the curve. The line 1, also shown on Figure 2, is the asymptote to the curve. Using the equation of this model and the information given in Figure 2 (find an equation for the asymptote /. -trg t>0 is 24°C 04 142 (1) 4:10.7² DO NOT WRITER €

（4）の解説をお願いします🙏

▲★ 標準 0≦a≦xのとき, 関数 y = sin0+ cos0 の最大値は Y y = sinot cose.asin(+)、 OED ŠTUFY I SOTTS an よって雪sin(+)=1 各辺を2倍して -)/√2 € √2 sin (0+7) £,/√2 A (5) 方程式 cos20+3cos0-1=0(0≦0<2π) の解は,0= 標準 (2CO3-1)+30050-1=0 最小値は である。 12/3である。

青チャートのAです かっこ1で証明に使わない角についてわざわz言及しているのはなぜですか

87 基本例題 接弦定理の逆の利用 00000 10の外部に接線 PA, PB を引く。 点Bを通り, PAと平行 SCOUT な直線が円0と再び交わる点をCとする。 <PAB=a とするとき, ∠BACをaを用いて表せ。 直線 AC は △PAB の外接円の接線であることを証明せよ。 指針 (1) 円の外部の1点からその円に引いた2本の接線の長さは等しいことや, 接弦定理, 平行線の同位角・錯角に注目して,∠PAB に等しい角をいくつか見つける。 (2) 接線であることの証明に、次の接弦定理の逆を利用する。 0,348 TERA 円 0 の弧 AB と半直線 AT が直線 AB に関して同じ側にあって ∠ACB=∠BAT ならば,直線ATは点Aで円0に接する (1) の結果を利用して,∠APB=∠BAC を示す。 解答 (1) PA=PBであるから ∠PAB=∠PBA=a また, PA//BC であるから ∠ABC=∠PAB=α 更に ∠ACB=∠PAB=α よって, △ABCにおいて ∠BAC=180°−2a ...... P おいて、円の CHART》 接線であることの証明 接弦定理の逆が有効 (19) A B89 使わない DETERA ∠APB=180°-2a 0円 13 p.436 基本事項 ② ...... A HA3 | 接線の長さの相等。 a NGAPDATA C onit SA SEN 09:A ART SI (2) AAPBにおいて 1⑩② から ∠APB=∠BAC THIAPATIA したがって,直線 AC は △PAB の外接円の接線である。 A4 接弦定理の逆 B 439 T > 平行線の錯角は等しい 接弦定理 PROL PA- とし、その手をとすると、名は てみよし、これから △PAB は二等辺三角形。 79-84-A4 A 章 144 円と直線、2つの円の位置関係 <DO & FR>

脚注の問題３問の答えを教えて下さい!！

Part Q. Listen and choose the best match for the picture on the right. 1 artificial intelligence intelidy(ains/ handle(s) /htend(a)l(e) deal dud assistant fasist(a)nt/ reply pla possible (pa(:sab(a)l/ buge /hjú:ds/ knowledge /nai:)lidz/ appropriate /aproupriat/ seem (siml/ safety /sérfi! 6. this は何を指しますか。 Sakura reads about the spread of AI. 6. They は何を指しますか。 7. this は何を指しますか。 HI a great deal Al, artificial intelligence, handles in many systems today. H information. It makes decisions like humans. Al is us Voice assistant systems are one example. When y ask something, the systems give you a quick reply. is this possible? They access a huge online knowle From this, they choose appropriate word make answers. The answers created by Al often see be just for you. This is because the systems are al database. collecting data about you. AI is also used in air conditioners, robot va cleaners, car safety systems, and so on. They he lives a lot. Al seems to make everything possible. 1. a (great deal of 12. and so on 6. access の品詞と意味は? 7. database /destabers/ F-9-2 11. air conditioner léar kəndif(ə)nər) 1717 11. vacuum cleaner /vækjuam kli:nar/ 9 C A

脚注の問題３問の答えを教えて下さい!!

Part Q. Listen and choose the best match for the picture on the right. 1 artificial if(a)l/ intelligence intelids(a)ns/ handle(s) /hand(a)l(z) deal /di:l/ assistant asist(a)nt/ reply plás possible (på(:)səb(a)l/ huge /hjú:d3/ knowledge /nå(:)lidz/ appropriate /aprouprist/ seem /si:m/ safety/sérfti/ Sakura reads about the spread of AI. HI 7. this は何を指しますか。 C deal information. It makes decisions like humans. Al is use Al, artificial intelligence, handles a great in many systems today. Voice assistant systems are one example. When y ask something, the systems give you a quick reply. H is this possible? They access a huge online knowle From this, they choose appropriate words database. make answers. The answers created by AI often seen be just for you. This is because the systems are al 6. this は何を指しますか。 6. They は何を指しますか。 1. a (great deal of 12. and so on 6. access の品詞と意味は? 7. database (déttabèrs/ F-9-2 11. air conditioner léər kəndif(ə)nər/ IP 11. vacuum cleaner /vækjuǝm kli:nər/ A collecting data about you. AI is also used in air conditioners, robot va cleaners, car safety systems, and so on. They hel lives a lot. Al seems to make everything possible.

英語長文の定期試験の問題なのですが、最初のAの正誤問題のcがT(正)になる理由が分かりません。 問題文のcの文章には Nasa succeeded in cutting down on the sound とあり、 本文には画像の蛍光ペンを引いた箇所の通り Nasa h... 続きを読む

英語長文演習1学期中間試験 問題用紙 ※解答はすべて、 解答用紙に記入しなさい。 ※解答用紙のみ切り離して提出する。 1 Read the following essay and answer the questions. Most commercial airplanes travel at about 500 to 600 miles per hour. SR-71 Blackbird, which was developed by Lockheed Martin in the 1960s, could fly as fast as 2500 miles per hour. At that speed, you could go from Tokyo to New York in just around three hours. So why does it still take so long for ordinary people to fly? I The to shatter windows One of the biggest problems is that when a plane flies faster than the speed of sound it breaks the sound barrier, causing a sonic boom. This boom is thousands of feet below the plane. II Unfortunately, a lack of fuel efficiency and the high costs of maintenance made it unprofitable. It retired in 2003, just a few years after a major accident. But the dream of supersonic travel never died, and engineers at NASA have finally figured out a way to reduce the sound of a sonic boom to little more than that of a car door shutting. III If all goes well, they will use the data they collect to try to convince regulators to update aviation laws to allow commercial supersonic flight. At least three companies in the US are hoping to advantage of such a change, and they aim to put supersonic planes in the air within the next decade. QUESTIONS: A About the following explanations, put T if it is true, and put F if it is false. Qa. Before realizing the dream of supersonic travel, aviation laws must be changed. b. In 1960s, ordinary people could go from Tokyo to New York in just around three hours. c. Nasa succeeded in cutting down on the sound made by supersonic airplanes. d. The Concorde flew much faster than ordinary commercial airplanes. e. Supersonic airplanes can do damage to houses or buildings when they fly over land. BChoose the right sentence to fill in III a. NASA is hoping to run test flights over land in 2022. b. Military airplanes fly at speeds many times that. c. That's why the Concorde, a supersonic plane that traveled at around 1500 miles per hour, was mostly limited to routes above the ocean. CChoose the appropriate word or phrase to fill in ★ and ☆ . ★ b. so loud c. loud enough a. too loud d. louder a. make b. take C. gain d. share

至急答えと　なんでそうなるのか お願いします😭

2 する _-) 16 A B 動詞 ・ 述部に関する問題 ② ② 別冊解答 p.22~2 選択 FEAR 空所に入るもっとも適切な語(句) を選びなさい。 問題 ) his position as an ALT at the beginning of the next 1 Mr. Richard ( month. has started has been started (宮崎大) 4 will be started 3 started ) athletes 2 Mental training, such as visualization and meditation, ( over the years. 2 has been practiced by has practiced ( 慶應義塾大) 4 has been practice among 3 has been practicing 3 A: What are you going to do tomorrow? B: There's nothing particular I need to do, so I ( 1 may 3 must ) just stay at home. (北海学園大) 4 couldn't 2 can't ). (追手門学院大) A: I'm thinking about going to Hawaii during Golden Week. B: You should make a reservation ( 1 quickly as possibly as you can 3 as possibly quickly as you can 2 quickly as possibly as 4 as quickly as possible 5 The secretary had her salary ( 1 raise 2 raised ) twice a year. risen 4 rose (藤女子大) the traffic rules, but so many of them 6 All drivers are expected to ( run red lights. 1 look 2 observe (3) see 4 watch (秋田県立大) 7 After he joined the travel agency, he worked hard to improve his English in order to carry ( ) his duties more effectively. 1 away 2 back 3 off out (センター) 8 Eric's friends, Minoru and Sachiko, will be here at seven this evening. He ( ) doing his homework by then. 1 has been finished 2 has finished 3 will have finished 4 would finish (センター) 動詞述部に関する問題 ② 第4回 1 学習日 第4回 年