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物理 大学生・専門学校生・社会人

高校レベルの物理の問題です。 答えは出したのですが、解答と合わなかったので最後の問題の解き方を教えてください。

空気抵抗とは空気との接触により運動を妨げようとする力のことであり、運動している物体の速さ (速さの1乗) に比例する粘性抵抗と速 さの2乗に比例する圧力抵抗がある。 雨が圧力抵抗のみを受けながら鉛直下向きに落下する様子を考える。 圧力抵抗の比例定数を重 力加速度の大きさをg [m/s²]として以下の問に答えよ。 V 問31 鉛直下向きを正として雨の加速度をa [m/s'] としたとき、 速さ [m/s]で落下している雨滴の運動方程式はどのように記述され るか。 適切なものを1つ選べ [31] ① ma = mg + kv² (2) ma=-kv (3) ma = -kv² (6) ma=mg- ・kv (7) ma = mg-kv² ⑧ ma-mg 問32 比例定数kの単位はSI単位でどのように表されるか。 適切なものを1つ選べ。 [32] ① N·m ②N・s ③kg·m ⑥ N/m ⑦ N/s ⑧kg/m ①kmg mg k ② 月 33 雨滴は地表付近では等速度運動をする。 そのときの速度 (終端速度) Pt [m/s] として適切なものはどれか。 1つ選べ。 [33] mg -1 (半径に反比例) img k 5 1 (半径の1乗に比例) ④kg's ⑨kg/s 1km g 30 (半径に関わらず一定) 4 ⑧ 0 34 圧力抵抗の比例定数kはp を空気の密度、S を物体の断面積として、以下の関係がある。 x=2/cos CpS 4 ma = kv 9 ma = mg - 12/1 (半径の平方根に反比例) ⑤m/s² ⑩ 単位無し ここで、Cは物体の形状に依存する係数であり、 球の場合はおよそ 0.5 となる。 雨滴の形状が球だとして、終端速度は雨滴の半径の何 乗に比例するか。 適切なものを1つ選べ。 [34] ⑥⑥/12 (半径の平方根に比例 62 (半径の2乗に比例) ⑤ ma=kv² 10ma = mg + kv kv²=mg V = long fals い JAL = der²tu Img_ 11 4mg erin 4mg en F√ √

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TOEIC・英語 大学生・専門学校生・社会人

答えを教えてください! よかったら,根拠も教えてください

la vitbl Questions 4-7 refer to the following letter. January 10 Ms. Erin Murphy Customer Service Department Westcoast Airlines Major Miles Program 345 Brook Street Dallas, TX 75218 Dear Ms. Murphy, As per your request during our telephone conversation on January 8, I am sending you Los Angeles International Airport last December. Please note that my ticket was upgraded itinerary and ticket number for my recent roundtrip flight from JFK International Airport business class with a Major Miles Gold Class voucher and should therefore be eligible f full business class mileage credit. 62 Section Il over 15 years. I must confess that I find the new restrictions to your flight voucher pla I am a Gold member in the Major Miles program and have been a Westcoast customer 1 genuinely confusing. I fail to understand why the burden of proof for my mileage cred rests with me. Shouldn't this information be on your ticketing computer? This was my itinerary. MD My ticket number was #YB42565697. Departed JFK, December 22 at 10:20 for LAX Returned to JFK from LAX on December 29 at 16:40 My seat number was 14B. 7B My Major Miles number is # 04356721 (Gold Card). I sincerely hope that this issue will be resolved quickly as I am counting on my miles eame during this trip to upgrade my hotel room next May. Thank you very much for your attention in this matter. Sincerely Yours, Jarrod Watkins Jarrod Watkins 4. 5. 6. What does Ms. Murphy do? (A) She makes airline reservations. (B) She deals with unhappy customers. (C) She issues new tickets. (D) She upgrades people to business class. What is the purpose of this letter? (A) To upgrade his ticket to business class (B) To buy a flight upgrade coupon (C) To complain about his seat reservation (D) To receive more mileage credits How does Mr. Watkins feel about the new frequent flier program rules? (A) He would like them to be simpler. (B) He believes they are unfair. (C) He finds them to be convenient. (D) He hopes that they will benefit hold Card members more. Which of the following is NOT mentioned in the letter? (A) His ticket number (B) His frequent flier level (C) His credit card number (D) His flight information inq M:8 big en enthovenot cold w lar hud,mq 01X in jord is di Hal Unit 2: Letters, E-mails, & Text message chains 63

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TOEIC・英語 大学生・専門学校生・社会人

英文法の穴埋め問題をどなたか教えていただきたいです。1〜8までの正解と解説をお願いします。

10 abc X₂ X² Aa A AⓇ フォント # V 1.4 2 ← 2 E 2. The shepherd has a habit of counting his sheep every night to make sure that all there. (A) ite (B) it's (C) their (D) they're E for her best-selling nature photography books, Naomi Ward opens a photography school next month. (A) Know (B) Knowing (C) Known (D) To know 3.4 2 2 段落 e beginning and advanced courses in cellular biology include lecture and laboratory time. (A) Both (B) Each 4. An all-staff meeting on November 6th will focus on ------ each department is doing to prepare for our annual inspection. (A) howe (B) whate (C) Either (D) Every アクセシビリティ: 検討が必要です 2 2 f E 5. John Berg went to his office to talk with his boss he returned from his overseas business trip. (A) as far as E 2 2 6. Bill Cain had never heard of the company; he could not say anything when his A S 8. E ------ ← 標準 I (B) once + ■行間詰め (C) so that (D) whereas 7. This fall, Plasma Tech Inc. is offering a new line of digital metering products that are compact, ---, and reasonably priced.< (A) consistente (B) conveniente (C) insistent (D) present 見出し1 boss asked him about it. (A) however (B) meanwhile (C) nonetheless- (D) therefore On Saturday, October 19, Headlands Sports Club is holding Day. (A) it (B) its 見出し 2 annual Open スタイル E 表題

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TOEIC・英語 大学生・専門学校生・社会人

英読解の問題です。 すっかり忘れてしまったため何も分かりません。 2問教えて欲しいです。お願いします><

2022 P=HT 6. 次のお知らせを読み、 (1) ~ (2) のA~Dで適切なものに○をつけなさい。 [4×2=8] TO: All staff From: Erin Liner, Manager Date: July 15 Subject: Our survey Dear all. We have finished reviewing the data which we received from the recent customer satisfaction survey. I would like to share the most important findings, and how we can improve on certain areas of our work. Overall, customers were happy with the quality of our service. the helpfulness of our staff, and the range of products we offer. However, there were some negative comments which we can begin to work on. A common complaint was that there are not enough foreign titles in the store, especially Japanese comics. I will ask John Calman to research some of the most popular series and make sure we start carrying them from the fall. As Gita Pradesh spent her college years in Tokyo, I will ask her to assist. Better signage was another thing which people wanted. They spend a lot of time looking for the right section and it frustrates a lot of customers. This is something we can improve immediately, so I will speak to Alice Moore today about making the signs easier to see, and adding more if necessary. Finally, we got some comments about having a small cafe in the store. Nowadays, people want to have a coffee while reading or browsing, and it could be a new source of profit. Mario Venetti will make a report on the feasibility and deliver it next month. Thank you for all your efforts in making us the best we can be. Erin Liner Manager (1) What is the purpose of the e-mail? (A) To ask staff to create survey questions (B) To share details of customer feedback (C) To inform staff of recent changes (D) To invite staff to apply for new positions (2) Where does Ms. Liner most likely work? (A) At a café (B) At a movie theater (C) At a clothing shop (D) At a bookstore 以

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