物理基礎の質問です。 vx=cosθ、vy=sinθ と vx=v1x+v2x、vy=v1y+v2y の違いはなんですか？

火 の の す すー 流火の連度 O回9 川を構切って進むの連度 O速度の分解 (5) 式は, 1つの連度すを2つの連度で、 に分解でき ると考えてもよい。このような場合, 速度を分解 するといい, 分解し た2つの速度を分速度 という。 components of the velocity の速度の成分 速度の分解は, 分解する2方 向のとり方によって何通りでも考えられるが、 図 10 のように,垂直な 2方向(x軸方向とy軸 方向)に分解すると便利なことが多い。この 5 とき,分速度 びx, Uyの大きさに, 向きを表 す正·負の符号をつけた値 vx, Uy を, 速度 0| X O図 10 速度の成分 のx成分,ッ成分 という。 速度v(大きさ v)がx軸の正の向きとなす角を 0,0のx成分, y成分 10 シータ をそれぞれ vx, Uy とするとき, これらの間には次の関係が成りたつ(cos sin 0 は三角関数)。 Op.250, 262 Ur = vcos 0, Uy = usin 0 (E v= VUx° + Uy また, 2つの速度(x成分 Dux, ソ成分 vy), D2(x 成分 D2x y 成分 Ux, Dy は, 各成分の和で求められる。 V1 Ur = ULr + U2r, Uy = Viy + U2)

4問とも分からないです。どこがどう間違いなのかも教えていただきたいです。

むものを 1 つずつ選べ. (各2点) Neクロ ツジ gS gunlesS We do not live sin づ: 下線部 afのうち, 間違いを含 (1) 。We do not seem pable to surVive c3S human bein close cooperation with rone another. (2) 。Some foods pconsist mostly in artificial components, 。and the worst thing aabout it is 。that these are mainly the tkinds of things ithat children jike. (3) 。Public transportation phas been much improved. 。A high-speed train, for instanCe, 。takes passengerSs sfrom Montreal to Toronto ifor less than two hours. (4) 。Though many Wome ement, amost of them agree 。that even a part-time jo n say pthat part-time work reduces their chances cfor advanc b is rbetter than any at all 【日本婦子大】

4問とも分からないです。どこがどう間違いなのかも教えていただきたいです。

むものを 1 つずつ選べ. (各2点) Neクロ ツジ gS gunlesS We do not live sin づ: 下線部 afのうち, 間違いを含 (1) 。We do not seem pable to surVive c3S human bein close cooperation with rone another. (2) 。Some foods pconsist mostly in artificial components, 。and the worst thing aabout it is 。that these are mainly the tkinds of things ithat children jike. (3) 。Public transportation phas been much improved. 。A high-speed train, for instanCe, 。takes passengerSs sfrom Montreal to Toronto ifor less than two hours. (4) 。Though many Wome ement, amost of them agree 。that even a part-time jo n say pthat part-time work reduces their chances cfor advanc b is rbetter than any at all 【日本婦子大】

4問とも分からないです。どこがどう間違いなのかも教えていただきたいです。

むものを 1 つずつ選べ. (各2点) Neクロ ツジ gS gunlesS We do not live sin づ: 下線部 afのうち, 間違いを含 (1) 。We do not seem pable to surVive c3S human bein close cooperation with rone another. (2) 。Some foods pconsist mostly in artificial components, 。and the worst thing aabout it is 。that these are mainly the tkinds of things ithat children jike. (3) 。Public transportation phas been much improved. 。A high-speed train, for instanCe, 。takes passengerSs sfrom Montreal to Toronto ifor less than two hours. (4) 。Though many Wome ement, amost of them agree 。that even a part-time jo n say pthat part-time work reduces their chances cfor advanc b is rbetter than any at all 【日本婦子大】

4問とも分からないです。どこがどう間違いなのかも教えていただきたいです。

むものを 1 つずつ選べ. (各2点) Neクロ ツジ gS gunlesS We do not live sin づ: 下線部 afのうち, 間違いを含 (1) 。We do not seem pable to surVive c3S human bein close cooperation with rone another. (2) 。Some foods pconsist mostly in artificial components, 。and the worst thing aabout it is 。that these are mainly the tkinds of things ithat children jike. (3) 。Public transportation phas been much improved. 。A high-speed train, for instanCe, 。takes passengerSs sfrom Montreal to Toronto ifor less than two hours. (4) 。Though many Wome ement, amost of them agree 。that even a part-time jo n say pthat part-time work reduces their chances cfor advanc b is rbetter than any at all 【日本婦子大】

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

RHEED法の原理と得られる7つの情報が、この英文に書かれているみたいなのですが、よく分かりません。 分かる方助けてください！🙇‍♂️

INTRODUCTION Reection high-energy electron diHiraction (RHEED) uses a Rnely collimated electron beam with energy of 10-100 keV. The beam irradiates a sample surface with gazing incidence to obtain forward scattered difraction patterms. RHEED enables us to analyze structures of crystal surfaces at atomic levels and also to in situ monitor growth processes of thin films (mo、1988: Ichimiya and Cohen、2004: Peng et al.. 2011). From the arrangement。intensity and profile of the dilraction spots in RHEED patterns as described below in detail、 one can obtain various kinds of information: (1) the periodicity (unit cells) in atomic arrangements. (2) flat- ness of surfaces. (3) sizes of grains/domains of surface structures and microcrystals grown on the surface. (3) epitaxial relation between the grown flms/islands with respect to the substrate. (5) parameters character- izing structural phase transitions. (6) individual atomic positions in the unit cells. and (7) growth styles of thin films and numbers of atomic layers grown. The most important advantages of the method are that it is quite easy to install the RHEED apparatus in Yarious types of vacuum chambers without interfering with other components of apparatuses and to do real- time monitoring during thin-Rlm growths. Because of these advantages.RHEED is nowwidelyusednotonlyin research Iabs of surfaces and thin fims. but also in device production processes in industry Low-energy electron diiraction (LEED、see article Low-ENNERcy ErecroN DirscmoN)。 in which an electron beam of 10-100 eV in energy is irradiated onto a sample surface with nearly normal incidence to obtain back- scattered difraction patterns. is also widely used to analyze the atomic structures of crystal surfaces. Since one has to make the sample face directly to the LEED