100gのボールが右に5m/sで動いていて、もうひとつの動いてない物体にぶつかります。 ぶつかった間に働く力(F)はF=√2・k・Fmax・t－k^2・t^2で求められます。(画像にものってます。)Fmaxは10Nで、kは500N/sです。 画像に乗っているグラフは何秒間... Read More

A 100-gram steel marble traveling at 5 m/s [Right] collides with a target sphere at rest. The magnitude of the force between the marble and the sphere is given by F = √2kFt-k²² where Fmax = 10.0 N and the constant k = 500 N/s. The force is graphed vs. time at right. The curve forms a semicircle. 83) The collision begins at time t = 0 when the force between the marble on the sphere increases from zero. The collision ends when the force decreases to zero again. How long does the collision last? 841 The impulse ims At = 0.04 s F Fmax

この問題の答えが8.01kNになる解法を教えていただきたいです。

108 Chapter 3: Fluid Statics 3.54 The steel pipe and steel chamber shown in the figure together weigh 2670 N. What force will have to be exerted on the chamber by all the bolts to hold it in place? The dimensionl is equal to 0.75 m. Note: There is no bottom on the chamber-only a flange bolted to the floor. ←d = 1/4€ Steel pipe Liquid (SG 1.2) 4t Steel chamber D=l→ A Problem 3.54

英語の長文です。 文法表現のあるところが知りたいです。 よろしくお願いします。

UNIT 1 5 Reading Passage 10 15 20 20 25 Listening There are more than 37,000 known species of spiders in the world in a wide variety of shape's and sizes! The largest spiders in the world live in the rain forests of South America and are known by the people who live there as the "bird-eating spiders." These spiders can grow up to 28 centimeters in length- about the size of a dinner plate, and, as their name suggests, have been known to eat small birds. In comparison, the smallest species of spider in the world is native to Western Samoa. These tiny spiders are less than half a millimeter long — about the size of a period on this page and live in plants that grow on mountain rocks. - Some people like to keep spiders as pets, particularly tarantulas, which are native to North America and can live for up to twenty-five years, Most people, on the other hand, do not like touching spiders, and a significant number of people are afraid of them, mainly because of their poison. However, despite their bad reputation, only thirty of the 37,000 known species of spiders are deadly to humans. Spiders actually provide benefits to humans, by catching and eating harmful insects such as flies and mosquitoes. - - The main thing that makes spiders different from other animals is that they spin web's to catch the small insects they feed on. The unique silk of a spider's web is produced by special organs found spider web is five times in the lower part of the spider's body. It is light, elastic, and strong stronger than steel. Additionally, it is completely biodegradable. This means that the web will making it perfect for uses completely decompose¹ and eventually return to nature over time such as making fishing nets. Some people have tried to raise spiders commercially in order to collect the silk these spiders produce, but no one has ever really managed to make a go of it. One reason why these businesses never stand a chance is because it takes 670,000 spiders to produce half a kilogram of silk, and all of these spiders need living insects for their food. In addition, spiders are usually solitary² animals, and need to be kept alone. Researchers at an American company working together with two U.S. universities may have found a solution to making artificial spider web. Using genetically modified silkworms,³ the company hopes that in the long run it will be able to make large quantities of very light, very strong fiber for medical as well as other uses. Additionally, because the manufacture of the artificial web is from living silkworms, the industry potentially would be non-polluting and less harmful to the environment

この文章の和訳を誰かしていただけないでしょうか😢 英語が苦手で、、、。よろしくお願いします！

19,20 Friday, Feb. 26, 2021 O French safety officials the 写真提供:ロイターアフ。 safety official 安全局合。 on Thursday gave green light to extend the lifetime of the FESSENHEI/ 35 eDF country's oldest nuclear power plants as it seeks to boost the share of renewable 再生可能エネ ルギー mix. renewables in its power の Nuclear energy currently provides nearly 70 10 French electricity, more than in OFrance, hoping to reduce that share to 50 percent by 2035 percent of any other country. obs91 910a8 ーa target pushed back from an earlier 2025 date the help of renewables, has been holding off from building with hold off 控える、見合わ せる new reactors. 15 The French nuclear safety authority(ASN) said the country's 32 plants with 900 megawatt capacity, built mostly in the 1980s, would be allowed to operate for another nuclear safety authority 原子力安全局 decade, taking their potential lifespan to 50 initially planned 40. 20 6 They will therefore not be decommissioned before the late years from the uohee) 活導大 2020s or even late 2030s, depending on their initial launch date. 6 The safety of French nuclear plants is checked every bse 01nla8 decade. s の ASN asked state-controlled electricity provider EDF, which EDF フランス電力 the country's nuclear plants, to undertake work to safeguard the stations' security. “The main target was to limit the consequences of accident, especially any serious accident involving the manages any necessary any meltdown of a reactor," ASN's deputy director-general Julien

できれば解説付きで教えて欲しいです。 TOEICの問題です。

1. Local libraries offer reading programs for children and ESL for adults. (A) frequently (B) frequenting (C) frequent (D) frequented 2. This year's excellent has earned our production plant renowned in the Company. (A) performed (B) performable (C) performance (D) perform 3. Anyone who a new stove by CTX Ltd. this weekend receives a free fourpieces set of set of stainless -steel saucepans. (A) purchase (B) purchaser (C) purchases (D) purchasing 4. The primary concern among our manufactures is acquiring the necessary resources at a reasonable price. (A) finances (B) financed (C) financial (D) financially 5. Questions about production concerns should be to Ms. Bates. (A) direction (B) director (C) directs (D) directed 6. Last week's performance was judged to be a major even though it received no local media coverage. (A) success (B) succeed (C) successful (D) successfulness 7. Underwood Energy Services Inc. offers benefits to full-time employees, including dental insurance. (A) attraction (B) attractive (C) attract (D) attracted 8. Mr. Whatley unintentionally took Ms. Pots' timetable, thinking it was (A) him (B) himself (C) his (D) he

答えが無くて分からないので教えて欲しいです

SIMなし合 22:01 Cop 【1】次の英文を読んで, 設問 1~12に答えなさい。 なお, *印の語(句)には文末に注 がついています。 Modern examinations of working conditions in British and U.S. industry in the nineteenth and early twentieth centuries concentrate mainly on the experiences, Complaints, and overall difficulties of working-class laborers. The first complaint that a majority of industrial workers had was that their workdays* were too long. The average (ア) of hours in a shift varied from industry to industry, from place to place, and from era to era. Workers in British and American textile mills* in the early to middle 1800s generally worked twelve to fifteen hours, six days a week, ( イ) only Sundays off. Their average workweek* was seventy-eight hours. In contrast were the hours of workers who labored in American steel mills in the late 1800s. The length of their shifts was determined by the fact that the blast furnaces* they tended almost always operated twenty-four hours a day. Thus, (oit became customary* for steel mills to have two twelve-hour shifts. However, many of the steel workers labored seven days a week. (a)That gave them a workweek of sighty-four hours. Moreover, sometimes they had to work extra hours on top of this demanding schedule. (オ )the minor differences in the length of workweeks from one industry to another, the average worker put in twelve-to fourteen-hour days at least six days a week, This harsh schedule remained more ( カ) less standard well into the twentieth century. It was not until 1920 that a fifty-hour workweek was introduced in the United States. Anda forty-hour week did not become the rule in most industries until 1938. Low wages was another common complaint of industrial workers. In 1851, the average wage earned by American industrial workers in general was seven to ten dollars per week. That same year New York's Daily Tribune* reported that a worker's family of five required just over ten dollars a week just for basics such as rent, food, and fuel. Most ordinary workers could not afford many simple comforts that middle-class workers enjoyed. (o This miserable situation lasted in America for decades and improved only slowly. As late as 1912, a study found that only 15

(2)の答えがなんで(ウ)なのか分かりません。 (イ)でも成り立つようにも思えるのですが……

7【ワークブック】 Choose the best answer. (1) It is nice ア for イ of ウ to (2) I can't find my wallet. I think it ア steels イhas stolen ウ have been stolen (3) My father's room is filled ア by イ of ウ in (4) The Internet enables us ア to get イ get (5) When you go to America, do you ア have to (6) This house in this region are made ア in イ of ウ from (7) Yesterday, the train was ア crowded you to offer your seat to me. uO エ I will have stolen books. IA エ a lot of information. ウ getting I got get a visa? イ must ウ need I ought to bricks. I by and I had to wait for hours ウ injured イ delayed I satisfied

分かるところだけでいいので教えてください！

旧和-前lmppe si 証選是2 Read the text and answer the questions below. (apt wm Eve Every year hundreds of new bridges, large and small ane but around he worid. 可 inanon of NOSE Most ofthese 5 a p brdges are marle of wood, steel, concrete, or some Com! uilt uSiNIg yariouき (hree i W materials. However, in (he last few years bridges are Dein如 Iinds of plastics. reinforced1 mmm es 上 0 4 mew bridge in Kiipphausen, Germany, is made entirely 0『 glass-fiDeT like those plastic (GRP). Jr is just as strong as a concrete or steel br put un ュ = httiSR marerials、 GRP does not corrode and is not affected by fros 0F mold. Althou店 し pected to concrexe, し導SEPウデニーー more expensive than a conventional bridge of steel and money Jast machi longer and to need less maintenance, so he 【OWP will saVe Abndge im New Jersey.U.S.4 is made of anew mee plended fro or plastic used for many S ATe made of polystyTene m reCyCled mm "polyethylene and "polystyrene. Polyerhylene is a kim containers and many coffee cups plates, bowIs, and IO Neithuer of Chese raterials alone is SITOnB enough to mal em is much stronger.The neW bridge is ce will also be cheaD and ea5y is that they can be desigmed y-developed computer software can of a specific site by modifyinga ooSing frOm a range ke a bridge. but the new 14 meters long and can material made from th to maimtaim. 5 support a heavy fire rruck. This bndg Another advantage of plastic bridges more quickiy (hanm conventional bridges. Speciall pe used to desjgn a plastic bridge (hat meets the needs e way customers buy a neW car by ch srandard basic desigm mm 由 zo of opiions and specil equipment. Once the bridge's desigTl 1 completed, the plastic and built much em parts car be manufactured in a week. These Coml onents are light in weight amd easy ro handle, so a small bridge can be installed by atwo-mancrew inafew hours. Most of (he plastic bridges built so far ar rraffic. As the technology advamces and the advanmtages of e comparatively small、 buili for pedestrians or jjghf vejicle plastic bridges are recOgiZed, hOWeVer, there could be many Iarge-Scale highway and raijroad bridges made of plastic in the Tuture. ghessdiber einforced plastic グラスファイバー強化プラスチック mold かび polyethylene ポリエチレッ polystyrene ポリスチレン

間違えているところはありますか？ 答えが配られていないのでわかる方いらっしゃったら答え合わせお願いします🥺🙏🏻 ✍8

はその知らせに逢Cた7 便) The train zees oroded (その列車は子どもたちで混術してい寺 (に合うように, 下線部に適切な語を入れなさい。 は両親から愛されている。 1 Am [ed by my parents. (⑫ その小説は多くの人に読まれている。. 5 The novel 1S Yend | by mmy me 9 NM (⑬) 今朝, 庭は雪でおおわれていた。 おおう」 The gmrden 0 coered 才際 信 ※の文を日本語に直しなさい。 人 (1) The cheese was eaten by a m ムイ -ズ"(す在 Ad2 | (2) Tofu is made from so 0 2 1生 (3) Many Ianguages are spoken in Bwi に angmee

回答と解説お願いします!

中 2 2 Oi ee jnest keep year swetbet while yow ate drivg 4(4r, O fstew @ ts fstee ③ be fkteg ⑳ fstencd MAsao didrt teserve our Seats, hoah [asked 還&. のmnt @thiw ⑳ td。piwm @ pm 6 [3 | raiw。 +he basbaul g9me will bepet off でll net Welnes&/. O rsteel ⑨ Bykeyf @全のTc [he pembers Fe4uested that te Coachb (ge) TePced 6 Q be @ is ⑨⑳ we @⑳ ull ge Thoab T adusel him tp step Sekina ke | se ⑩ ImusT hoT ⑧ okt not や ⑧⑬ wowdet ⑲