エッセンス力学64ページExの問題です。。3枚目にの写真を見て回答していただけると嬉しいです。

EX 滑らかな水平面上に質量Mの球Q がばね定 PEMASANA ANG htt HER 数んのばねを付けられた状態で置かれている。 左から質量mの球Pが速度vで進んできた。 (1) ばねが最も縮んだときのPの速度を求めよ。 (2) ばねの縮みの最大値を求めよ。 (3) やがてPはばねから離れた。 Pの速度を求めよ。 LIME m まおう。 P Vo 10 k room M

(3)の解き方がわからないため、教えていただきたいです🙇

分子式 CgHg のスチレンは, 分子式 C8H10 の芳香族化合物Aの脱水素によっ て合成できる。 スチレンを付加重合させると, 高分子化合物Bが得られた。化 合物 A の異性体である芳香族化合物 C を酸化すると,テレフタル酸が生成し た。 テレフタル酸と化合物 D を縮合重合させると, ポリエチレンテレフタラー トが得られた。 分子式 C8H16 で表される枝分かれのない直鎖状のアルケンには、化合物E と Fを含む7種類の異性体が存在する。 幾何異性体をもたない化合物 E に臭素 Brz を反応させたところ, 化合物Gがラセミ体として得られた。一方,化合物Fと その幾何異性体の混合物に対して Br2 を反応させると, 鏡像異性体を含めて3種 類の異性体が得られた。この3種類の異性体の分子式はいずれも C8H16Br 2 で あった。 SAN .8 設問(1) 図 2 または図3にならって化合物 A~E およびGの構造式を記せ。 化 合物 G については,不斉炭素原子に*を記せ。 -C-O-CH-[CH21-CH=CH2 CH3 図2 for -CH2-CH- 図3 CH3] n 設問(2): 高分子化合物Bの平均分子量は2.95×105であった。この高分子化合 物の平均重合度を有効数字3桁で求めよ。 設問(3) 下線 ①で示した3種類の異性体のうち, 化合物Hは鏡像異性体をもた

グラマーコレクションの「名詞の語法」の答えを教えて欲しいです🙇🏻

154 (Practice).... ① 英文中の空所に入る適切な語または語句を選択肢から選びなさい。 1. Can you give me ( Ogive A a big □ give A ringicall] 「Aに電話をかける｣. □ keep A company 「Aと一緒にいる/Aに同行する｣, □ have no idea 「わからない｣ to the effect that SV 「･･･という趣旨の」 Ⓒ a good advice some good advices □ 3. ( □ 2. ( ) at the antique shop is really expensive. O The furniture 2 Furnitures ) the news on the Internet is said to be biased. O Much of 2 Many of 3 Lot of 4. Could you please make ( fun 2 seats 5. We changed ( trains 6. I'd like to ( be friend ) on what to buy here? 10. I have ( 7. We are on friendly ( ℗ terms a promise 3 an order 2 some good advice good an advice 3 A furniture ) for others? 8. Do they really have ( O meaningful to 2 to mean at 2 goals ) with someone who is good at English. 9. The daughter of your uncle is your ( 1 sister 2 brother 3 help ) at Yokohama Station to go to Kamakura. 2 train 3 a train ) with all our neighbors. 3 meeting make a friend 3 make friendly make friends ) buy such a huge mansion? 3 the means to 4 Some furnitures ). 3 cousin ) with the dentist this afternoon. 4 Few of 4 room 4 another train circle 4 by means of 2 an appointment 4 a reservation 4 aunt 158 (昭和大) 15 <国士舘大 <法 <岐阜聖徳学 ( <九州 (L

教えてください！！

12. There is an extra ( charge 2 money 3 pay 4 price () ) for sending packages by express mail. →163 13. Due to inflation, the ( ) of living has been rising. →163 1 wage 2 money 3 cost 4 salary (7x) 14. Kaitenzushi is a sushi restaurant where a conveyor belt carries plates of sushi past ( ) who can pick whichever plates they want. →164 1 clerks 2 chefs 3 customers waiters (*) 15. Someone who is traveling in a vehicle, airplane, boat, etc., but is not controlling it or working on it is called ( ). →164 1 a pilot 2 a passenger 3 a navigator 4 a pedestrian (**) 16. As expected, 60 out of 90 students sang popular songs for karaoke! That means ( ) of them prefer modern popular songs to old favorites. →165 1 two-three 2 two-threes 3 two-thirds 4 two-third (H) 17. The hall has the ( ) to hold 150 people. →166 1 capacity 2 landscape 3 presentation resistance () 18. I am a ( ) around here. →166 1 grocer 2 hanger 3 passenger stranger (***) 19. Applicants must have a good ( ) of both written and spoken English. →166 1 control 2 view 3 command 4 literacy (EN) ② 次の英文の下線部には誤っている箇所が1箇所ある。 その番号を選び、正しい形に直しなさい。 200Nowadays, a jumbo jet can lift 2nearly five hundred people and their 3luggages Dinto the air with its magnificent engine power. (t) →158 3次の日本文の意味になるように,( 内の語または語句を並べかえて適切な英文を作りなさい。 21. この問題をだれが引き起こしたか, 疑問の余地はない。 159 There (caused /is/ this problem/ for doubt / who / as to / no / room ). (A) 22. 母が誕生日プレゼントに何を欲しいのか, まったく見当がつかない。 → 166 (my mother/ any idea / for her birthday / what/I/ wants / don't have). (*)

（3）と一枚目の写真の違いを教えて欲しいです。今日先生に、何で（3）が②が聞いたところ、いつ と聞く必要がないからプラスもうyouという目的語がとられているから、目的語の役割をする名詞節はいらないとのことでした。しかし一枚目の写真では、なぜか名詞節でとられています。なぜですか？

187 Kendra's Language School He asked her if she knew him. 彼は彼女に自分を知っているかと尋ねました。

答えがなくて分からないので教えて欲しいです🙇‍♀️

Part 2. 下線部に入れるべき語句として最も適切なものを(a) つ選び、その記号を記入しなさい (d)の中から1 26. He's suffering from moming. a. fever He's been to the toilet six times already this b. diarrhea c. dizziness d. urine 27.I sometimes feel a little short of a. breath ifl go upstairs too quickly. c. height b. dizziness d. weight 28. I'm allergic to house dust and pet hair. IfI'm near a cat, I can't stop a. laughing b. sneezing C. throwing up d. waiting 29. It's not a bad cut. You won't need any a. blood A band-aid should be enough. b. stitches c. suppositories d. trouble 30. Some patients suffering from a. heart disease need dialysis. c. lung b. kidney d. stomach 31. Do you have any pain? Where does it b. have a. feel C. hurt d. look 32. AEDS are useful if someone has suffered a heart a. acute b. attack c. electric d. time 33. cancer is a disease that affects women but is much less common in men. a. Breast b. Every C. Head d. Prostate 34. a. Diabetes is a common disease, often caused by lack of exercise and a poor diet. b. Influenza C. Insomnia d. Mumps 35. Please your arm and make a fist. b. put off a. hold out c. stand up d. take out 36. The will soon stop if you use this cream on your rash. b. itching a. dizziness C. time d. weakness 37. People who have had a a. heart often suffer paralysis or loss of mobility. C. stroke b. problem d. symptom 38.“What are your ?"“I have a headache and a sore throat." a. conditions b. signs C. symptoms d. terms

どうして 極座標→直交座標 直交座標→極座標 のときのrがr²の時とそうでないときがあるのですか？また、rの時は±がついてないのはなんでですか？

1極座標 直交座標上の点 P(x, y) に対し て, OP=r とおくと, x=rcos0, y=rsin0, r=\x°+y? 2

英語の問題です (6)の穴埋めなのですが 3分の1を入れるところでcのone-thirdを選んだのですが、答えはdのone-threeでした。 なぜcが答えじゃないのでしょうか 教えてくださいよろしくおねがいします

1.次の英文について以下の設問に答えてください。 *印の付いた単語は下に注がありますので参考にしてください。 More than 100 years ago, a *deadly flu virus circled the globe. It caused the influenza pandemic of 1918-1919. Before it was Over, this disease had *sickened an *estimated 500 million people. That was[ 6 ]ofeveryone alive at that time. Some 20million to 50 million people died.

至急お願いします

しまう Relative Clause: Fill in the gaps to complete the sentences. 吉 Select from: That, Which, Where, When, Whose, Who 1. Neil Armstrong is the Astronaut was the first to walk on the moon. 2. A surgeon is a doctor per forms operations. 3. California is a state in Amer ica gover nor is the famous actor Arnold Schwar zenegger. 4. The Volga is a river is the longest river in Europe. 5. J.K. Rowling is an author “Harry Potter” series of books are very popular. 6. A dictionary is a book gives us the meaning of words. I can try Fugu? “Romeo and Juliet" 7. Is there a restaurant around here 8. Shakespeare was an English author wrote 9. A hospital is a place sick people go to become healthy again. 10. New Zealand is a country has more sheep than people. 11. Gr aduat ion is an event you celebrate graduating school or university. 12. Carnivores are animals only eat meat. 13.A dentist is a person checks and helps take care your teeth. 14. Ringo Starr is the drummer in the Beatles name was Richard Starkey when he was born. 15. Stefani Germanotta is a singer stage name is "Lady Gaga” . 16. August is the month many Japanese return to their hometown for Obon. ser ved his favour i te food. 17. To celebrate John' s Birthday they went to a restaurant 18. My car, is very expensive, is a Mercedes Benz. 19. Brazil is the country hosts the next Soccer Wor Id Cup in 2014. 20.1 like movies have happy endings 21.1 dislike people who 22.1 like places where 23.1 don't like it when 24.1 like animals that An interesting story - Rewrite the story using who, which, that where or and. which who I was sitting in a café. 1 often go there for a drink after work. I called the wai ter. I know him quite well. I asked for a cup of coffee. While I was waiting I looked at a newspaper. It was lying on the table. I started reading an article on the front page. It said: "Police are looking for a woman, Cather ine. She has been mi ssing from her home for two weeks.'1 looked at the photo. It showed a Woman with dark cur ly hair, she had a round face. I recognized it at once. She was my new neighbor . She had moved in just 2 weeks before.

緊急です！どなたかこの問題解いて下さいませんか？お願いします。

○教科書「AII Aboard! Commun ication EnglishI」 p.12, 20,28~31 を読んで、,次の問題に取り組みましょう。 A p.28~31 を読んで,( )内に入れるのに最も適切なものを選び,マークしなさい。 解答番号1~11 (1) “I go to school by ( 1 ) and use a smart card as my commuter pass.” ア taxi イ bicycle ウ subway エ car (2) This semester my midterm exam results were good, but I want to do better on the ( ア term exanms イ job interview ウ medical checkup エ graduation ceremony (3) I belong to the science club. We often use the ( ア courtyard ウ science laboratory イ teacher's office エ art studio (4) In my bag, I always have my school ID card , ( |4 ), and key chain. ア wallet イ hand strap ウ priority seat ticket machine エ (5) I like traveling. Ienjoy deciding the ( |5 )and the kind of transportation I will use. ア traffic light イ room charge ウ destination エ stationery (6) In the middle of the village, there is a small railroad ( ア appoint イ crossing ウ ticket reserve エ (7) I live in a( 7| ). It has a living room, a kitchen, a bathroom and a bedroom. ア restroom イ storage area ウ balcony condominium エ (8) I like vegetables such as potato, ( 8|)and carrot. ア vinegar ウ pudding イ sunny-side up egg エ eggplant (9) We usually wear our ( 9 It is dark brown with some green stripes. ア school uniform イ school clinic ウ fashionable hairstyle エ public school (10) Iwas born on August 31, so my star sign is ( 10 ). ア Moon イ Virgo ウ Wednesday Sun エ (11) Ialways suffer from 11 )in spring, soI use eyedrops and other medicines. ア cut イ diarrhea ウ hay fever influenza エ B )内に入れるのに最も適切なものを下のア~オから選び,マークしなさい。解答番号 12~16 A: Hi, ( 12 )is Bob King speaking. May I ( B: Sorry. She is ( 14 )now. May I( 15 )a message? 13 ) to Ms.Jones, please? A: Thank you. Please tell her that I have a question ( 16 ) the report that she sent to me. ア speak イ out ウ this take オ regarding エ