英語です。クリティカルポイント2のチャプター3の答えが配られていないので、答え合わせができません。 答えを持っている方、または解いてくださる方、よろしくお願いします。

2. This electric machine did not function properly when it was delivered to my house, I have called several times, but there 助動詞·受動態 Chapter baim uoy biuo de o0 ー文法。語法一 空所に入れるのに最も適当な語(旬) を選びなさい。 ) out of town. n ud 1 1. Miki and her family ( (南山大) is no answer. 0 could go 3 should go の would be 2 must be lt uoy ) broken during shipping. (ship =輸送する) 2 could be om (慶歴大) It( ③ has to be の must have been 0 can have ) be watching TV. There are no programs today because of the strike 3 3. He( 2 can't may の should (東北工業大) 0 must 4.I saw Mr. Yamada at Shinjuku Station this morning." “You( ) have. He's still on vacation in Hawaii. 2 didn't (センター試験) D couldn't 3 might の should aci 5. Jim had a skiing accident, but he's all right. He's lucky, because he ( 97 (センター試験) 20clH d oo hurt himself badly. 0 could have bns ana 2 might ③ should の will have 6. This is a very important meeting. You ( ) miss it. (慶塵大) 3 ought not to amod og O had not better ② must have の should have ) here by now, for she took the early train. mort 7. My sister ( (センター試験) may arrive on ont 0 must arrive 2 can arrive の ought to have arrived (walin 8. Dorothy isn't in the office%; she ( 0 can be having ② can have coffee in the cafeteria. (センター試験) 3might be having 1ont ④ might have ) have to queue, when we've_already got our (東京電機大) 9. It is ridiculous that we ( tickets. (queue =列を作って並ぶ) 0 might ② ought ③ should の would 10. She proposed that a doctor ( ) be called in immediately. ④ ought (昭和女子大) 0 would 2 should ③ could 11.“I don't see Tom. I wonder why he's late.” “Well, he ( ) his train, or maybe he overslept." 0 might have missed ③ should have missed (センター試験) ② might miss ④ should miss 14

不定詞と動名詞です。教えてください。

不定詞と一 動名 詞 UATE: Infinitives and Gerunds 。The doctor has advised me not to eat eggs anymore, so I've stopped Power Frame> Grammar ( ) them. D to have bought 3 for buying STEP 04: 不定詞と動名詞 2 buying の to buy Frames for Tbis Chapter -この課のポイントを示す例題一 (南山大) 空所に入れるのに最も適切なものを選びなさい。 口 04 Have you finished ( )your essay? の to write 04 ② writing の to be writing 3 to have written (明治大) )a lawyer. の to become (九州国際大) I've decided ( I can't afford ( 口 05 O to buying FRAME 026 )a new car. 3 became O becoming 2 become 2 to buy mde 3 buy の bought (福岡大) I've finished ( ) the room, and I'm really hungry. What's fom FRAME 027 You had better avoid ( 2 to say 口06 ) anything to embarrass your parents. 3 saying dinner? O say の to have said (摂南大) 2 to clean O cleaning の being cleaned 口07 You ought to think about giving up ( ). It's bad for your health. 2 to smoke 3 cleaned (法政大) O smoking e ) the door before you leave. 3 closing FRAME 028 Remember ( 3 smoke ④ being smoking く芝浦工業大) O close 2 to close の you close ddoun y s ne (玉川大) )in Canada? 2 being working ④ working 口08 Have you ever considered ( ) English to communicate with the world. の to learn FRAME 029 I want you ( O to work 0 learn 2 learned 3 learning 3 to be worked 〈福井工業大) (甲南大) FRAME 030 Mary saw a police officer ( ) the room. 口09 After a lot of problems she ( ) to learn to drive a car. D enter 2 enters O gave upot ②managed 3 put off の succeeded(センター試験) 3 to enter の have entered く梅花女子短大) ■10 Iwill never forget ( had. ) Paris last year. It was the best holiday I've ever RAME 031 Don't ( ) the students enter this room. TSn O to visit 2 visit 3 visited ④ visiting (金沢工業大) O allow 2 let 3 permit ④ admi く十文字学園女子大) ) to impress the audience. 3makes 口11 This story never ( O sees 2 fails ④ becomes 〈関西学院大) ERCISE A >> 空所に入れるのに最も適切なものを選びなさい。 onaxa 口12 Please remember ( O having stopped 3 to stopping ) by his office before you go home. ② stop の to stop 01 I've decided ( ) here. I'm tired. 2 stayed (近畿大 O stay 3 staying の to stay (金沢工業大) journalist. )Manhattan on business as a young. ③ visit 2 Father promised ( ) his son to the zoo on Sunday. 口13 I remember ( の visited くいわき明星メ 2 visiting b b )an appointment before you go to see the dentist. の taking の to visit o wond faob。 Don't forget ( 2 took 3 to take ④ have taken shu nn (立正大) 口14 2 to be making O making (京都産業 ④ to make 3 to have been making 革文法完全演習パワーフレイ』

五番が分かりません！至急お願いします🙏

Time:35 minutes ↓ Chapter 英文を読んで、設問に答えなさい。 A-1 every son, Dave, lived alone. Ted was not very rich, so he had to work hora day. One evening, Ted was driving home after his hard work. He was vo.. s tired, but he loved his son. *A Dave must be feeling lonely now. I have to go home as soon ae possible." He hurried home, but he came back home at nine o'clock. Dave was still a awake when he saw his father, and said, “Dad, how much do you make an 10 hour? Ted got angry at his son. He was not making enough money for their living. And he was too tired to stay calm. “Why do you ask (1)Such a silly question when I come home from hard work? I make twenty dollars an hour. Is that good enough for you?" “Tm sorry, Dad. But (B)Will you give me ten dollars?" “Another silly question! Just go to bed and sleep! Right now!"” 15 After Dave went to his room, Ted sat down on his sofa and hada drink. A-3 (2He came to himself again, and thought he was wrong to his son. He went into Dave's room. 20 “I'm sorry, my son. I didn't want to get angry with you. Here's your ten dollars.” cThank you, Dad!” Dave got up and opened his treasure box. He had another ten dollars in it. When Ted saw this, (3jhe got angry again. A-4 “Why do you want another ten dollars? You already have ten dollars!'> But Dave asked, watching his Dad's eyes, “(4)Dad, can I buy your one 25 hour with these twenty dollars?" come to oneself: begin acting and thinking like one's normal self

5番の問題が分かりません！至急お願いします🙇🏻‍♀️🙏🏻

Time: 35 minutes * Chapter 1 英文を読んで、設問に答えなさい。 day. One evening, Ted was driving home after his hard work. He was vo.. s tired, but he loved his son. Dave must be feeling lonely now. I have to go home as soon as possible.” He hurried home, but he came back home at nine o'clock. Dave was still A-2 awake when he saw his father, and said, “Dad, how much do you make an 10 hour?) Ted got angry at his son. He was not making enough money for their living. And he was too tired to stay calm. “Why do you ask (1)Such a silly question when I come home from hard work? I make twenty dollars an hour. Is that good enough for you?” “Tm sorry, Dad. But (B)Will you give me ten dollars?” “Another silly question! Just go to bed and sleep! Right now!"" 15 After Dave went to his room, Ted sat down on his sofa and had a drink. A-3 (2He came to himself again, and thought he was wrong to his son. He went into Dave's room. “Tm sorry, my son. I didn't want to get angry with you. Here's your ten 20 dollars.” Thank you, Dad!” Dave got up and opened his treasure box. He had another ten dollars in it. When Ted saw this, (3jhe got angry again. A-4 “Why do you want another ten dollars? You already have ten dollars!” But Dave asked, watching his Dad's eyes, ““(4)Dad, can I buy your one 25 hour with these twenty dollars?" come to oneself: begin acting and thinking like one's normal self

どうして、青線のような式で求められるのですか

TEP 2 4) 1.5等級より 10倍明るい星の等級はいくらか。 2 0.4等級の星の明るさは4.4等級の星の明るさの何倍か。 1等星の明るさは6等星の明るさの何倍か。 0個あまり りである。 るさは約 地球から 4等級の星の明るさは4.4等級の星の明るさの何倍か。 3等星の明るさは1等星の明るさの何倍か。 15等級より 10倍明るい星の等級はいくらか。 コから より密に ニ 日日日店 0

41の問題で物体が落ちないための条件は、というところからわかりません 教えて下さい

する。 センサーE, Fコ ヒント Aは下向き、 Bは上向きに等しい大きさの加速度が生じるとして, 運動方程式をたてる。 最大摩擦力 図のように, 質量 m の物体を手で鉛直なあらい壁に 探しつけた。物体と壁との間の静止摩擦係数を μ, とすると, 物体 落ちないようにするためには, 手で水平方向に加える力の大きさ をいくら以上にしなければならないか。その最小値を答えよ。ただ し、重力加速度の大きさをgとし, 手と物体との間の摩擦力は無視 できるものとする。 ン 最大摩擦力の大きさが, 重力の大きさ以上であればよい。 m 842 気球の運動質量80kgの気球が鉛直に上昇している。こ の気球の加速度は, 鉛直上向きに0.20m/s°であった。 空気 抵抗は無視できるものとする。 1) 気球にはたらく力の合力の大きさはいくらか。 * 12) 気球にはたらく浮力の大きさはいくらか。 0.20 m/s chap

2番の下線部の解説いただきたいです。 また、円半周を通過するには、v>0、N≧0と 暗記していていいものですか？ 暗記せずとも理解できる方法があればお願いします。

ループ式ジェット·コ 鉛直面内での円運動 けて,質量m[kg]の小物体を大きさo[m/s]の初速 度でなめらかな水平面からすべらせる。重力加速度の 物理 基礎 物理 》122|| 127||131 例題33 B 大きさをg[m/s]とする。 m Vo の小物体の速さと面から受ける垂直抗力の大き さを求めよ。 10小物体が点Bを通過するための oの条件を求めよ。 Chapter 解答(1) 点Cでの小物体の速さを o[m/s)とすると, 力学的エネルギー 保存の法則より, 9 Oセンサー 39 B mgcos0 N C 円運動では,地上から見て 解くか,物体から見て解く かを決める。 0 地上から見る場合 遠心力は考えず,力を円の 半径方向と接線方向に分解 し,円運動の半径方向の運 動方程式を立てる。 rcos0:0 mu3 =; mo°+ mng (r+rcos@) 0 mg ゆえに、 v= Vu-2gr (1+cos0) [m/s] 垂直抗力の大きさを N[N]とすると。 A 地上から見た円運動の運動方程式は, m -=F r * m -=N+mg cos0 または mro'=F これに»を代入し,整理すると, 2 物体から見る場合 遠心力を考え,力を円の半 径方向と接線方向に分解し, 半径方向のつり合いの式を 立てる。 ※ どちらでも解ける。 mv? N= --mg(2+3cos0) [N] r 別解 小物体から見ると, 円の半径方向にはたらく力は, 実際 にはたらく力のほかに, 円の中心0から遠ざかる向き に遠心力 m がはたらいている。 半径方向の力のつり センサー 40 合いより、 物体が面に接しているとき, 垂直抗力N20 N+mg cosé-m =0 (量的関係は上と同じ) 補非等速円運動では, 円の接線方向にも加速度があり,物 体から見た場合, 接線方向での力のつり合いを考えるため には,接線方向にはたらく慣性力を考える必要がある。 (2) (1)より, 0<0ハx[rad]では, 0が小さくなるにつれて, v, Nはともに減少していく。点Bを通過するためには, 点上 でカ>0かつN20であればよい。 ①より, @=0をvに代入 )水平面を重力による位置エ ネルギーの基準面とする。 して、 リ=\-4gr よって, ぴ-4gr>0 ゆえに, >2gr mv また, 2より, 0=0をNに代入して, N= 5mg Y mvs よって, ゆえに, 2/5gr , ①を比較すると。 20(面から離れない条件)が の条件を決める -5mg20 3, ④がともに成り立つためには, ひこ/5gr

英語の長文です！ わかる方お願いします

ロ文型/文の種類 社会 1 25 rh Chapter Time: 35 mnutes 1 英文を読んで、設間に答えなさい。 Most important easons for doing voluntecr work Number of hous students volunteered per month 1%of students help people or community 44% 104 eam something new 24% Sto 10 get work eperience 20% 11 or more other 12% St. Martin's High School conducts a survey of student volunteer work 。 every year. The survey results show that many students have positive atitudes toward volunteering. The graph above shows the average amount of time that students spent doing volunteer work per month in this year. The table s shows the most important reasons given for participating. The teachers at the school have encouraged their students to volunteer since 2009. Before then, few students did volunteer work. When Brian Amster, the present principal, first came to the school in 2008, he found that there was litle communication among students, their families, and the 10 Community. As St. Martin's High School was in a newly developed arca, more than half of the students and their families were newcomers, and they did not know cach other or the area very well. Mr. Amster thought this was not good for the students and the communiry. Mr. Amster came up with the idea of volunteer work. p He wanted his の 15 students to have more contact with the local people through helping those in need. The local people really welcomed the volunteer activities. Volunteering gave many students a chance to learn a lot, and their self-esteem improved. It was good for the community and the students themselves, too. Mr. Amster says, "In the beginning, most of the volunteer activities 4 20 involved helping old people. Today, however, more and more students are doing activities related to the environment, such as cleaning parks and other public areas. Parents are also encouraged to help, and cach year, more and more parents are participating." One thing that makes Mr. Amster especially proud is that most students continue voluntering even after graduation. さ

（３）の解き方がよくわかりません どうやってこの式になったのか、重力だけでなく張力もはたらいてないのか その部分が特にわからないので教えて下さい

I ー 図のように、長さ3.2m の軽くて伸びない糸に質量 2.5kgのおもりをつけ,糸が鉛直線と 60°をなす位置まで おもりを持ち上げてから静かにはなした。 (1)はなした後におもりにはたらく力の名称を答えよ。ま た、おもりをはなしてから最下点を通過するまでに,こ れらの力のした仕事をそれぞれ求めよ。 (2) おもりをはなした直後における,おもりがもっている運動エネルギー,および最 下点を基準の高さとしての重力による位置エネルギーを求めよ。 (3) 最下点でのおもりの速さを求めよ。 (4) 最下点を通過してから,おもりが達する最高点の最下点からの高さを求めよ。 3.2m 60° 2.5 kg

物理の円運動での問題です。 これまで垂直投げ上げなどのときの最高点の速さは0でしたが、この問題では「速さは最小」と書いてあります。 どうして異なるのでしょうか？

体の速さは B いくらか。 (2) Bを通過する直前および通過した直後において, 小物体が面から受ける力の大きさ はそれぞれいくらか。 393 センサー 37, 39 Chapter 123 鉛直面内での円運動 右図のように, 長さLの軽い棒の 一端に小球をつけ, 点Oを中心に鉛直面内で円運動をさせたい。 重力加速度の大きさをgとする。 (1) 最下点での速さを 0とすると,最高点での速さはいくらか。 12)小球を1回転させるためには, toをいくらより大きくすれば よいか。 (3))棒の代わりに, 糸を用いて1回転させるためには, oはいくら以上であればよいか。 9 ヒント糸の場合, 最高点で張力T20として考える。 センサー 37, 39 コ 124 慣性力 エレベーターの中で, 質量50kgの人が体重計に のっている。 次の場合, この人が体重計から受ける力は何Nか。 (1) エレベーターが2.0m/sの一定の速度で上昇している場合 (2) エレベーターが鉛直上向きに 0.98 m/s' の加速度で運動して