この問題の答えが2になるのはなぜですか？1か3ではないのはなぜでしょうか？

1. crying 2. interested (1) The food that you bought yesterday ( 1. should eat 3. tired ) in a week. 2. should be eaten 4. exciting 3. has to eat 4. has eaten

この問題の解説がイマイチ理解できていないので、この解説の解き方じゃなくても良いのでどなたかお願いします🙏

演 2/3 図のRLC並列回路において,電圧[V|が反共振時の 1/√2となる角周波数 w1,Wz(W1 <w2) を求めよ. また,反共振時の電流 in, in, icをQ値を用いて表せ. 演習解答 ①ti R L C 教科書(4.3''')に示されるRLC並列回路のインピーダンスと,電圧が反共振時の1/√2 となるという関係から, 1 1 = -+(-) WC |i| wL を満たすωを求めればよい. 変形すると wL (WC - 1/1 + 1 ) ( WC - 1 ½) - = 0 R であるから,まず, w2RLC + wL-Rを解いて 同様に -L + VL2 + 4R2LC W1= 2RLC L + VL2 + 4R2LC W₂ = 2RLC |演習解答 教科書より,反共振時はV=Ri,w = である. √LC また,Q値は教科書 (4.32) の通りである. これらを用いると,電流İR, L, icはそれぞれ以下のように表すことができる. ic = V 立 = =i R = jwCRi = jQi 1 jwC v i -=-jR-i=-jQi jwL

英検２級の英文要約の添削をして欲しいです。明日英検なのにも関わらず、型を覚えていないので型を教えていただけるとありがたいです🙏問題は下の文章です。 Reading has been an important human activity for a long time. ... Read More

Recently, many people like to read e-books. It has benefits, such as it is able to carry many books on one device and buy cheaper than paper books. However, their eyes are damaged by screen bright. and it is difficult to read e-books without the Internet.

このwithは付帯状況なんですが、withのあと、何がOで何がCなんですか？

誤りを含む下線部がどれなのか教えていただきたいです。

The importance of documentaries is public as a social phenomenon. linked to a notion of the [a]. The philosopher John Dewey argued persuasively that the public-so crucial to the health of a democratic society is not just individuals added up. A public is a group of people [b]. who can act together for the public good and so can challenge the deep- [c]. seated power of business and government. It is an informal body that can [d] come together in a crisis if necessary. There are as many publics as there are occasions and issues to call them forth. We can all be members of any if we have a way to communicate each other about the particular public [e]. shared problems we face. Communication, therefore, is the soul of the public.

誤りを含む下線部がどれなのか教えていただきたいです。

Knowledge is our most important business. The success of almost all our other business depends on it, but its value is not only [a]. economic. The pursuit, production, spread, application, and preservation of knowledge are the central activities of a civilization. Knowledge is social [b] memory, a connection to the past; and it is social hope, an investment in the future. The ability to create knowledge and (c) put use to it is the key characteristic of humans. It is how we [d]. beings and how we change how we keep our heads in the clouds. reproduce ourselves as social [e]. our feet on the ground and

大至急！ 英検2級2024第2回のライティングです。 採点・添削をお願いします。 採点→各16点満点(内容4点、構成4点、語彙4点、文法4点) 写真が横向きで見ずらかったり、語数調整で文章が見にくくなってしまい本当にすみません😣💦

+ in their studies. [5] It is said that famous tourist sites, should limit the number of visitors. I agree with this opinion. I have two reasons why I think so. 31 First, It can protect nature. If the number of them decreases, garbages will be increased by th them, and as a result, the place's charm will become bad. Second, they saves a lot of time. This is because they don't have to wait there for a long time, and by doing so they will have a good time. For these reasons that I mentioned, す I believe that famous tourist sites, The number of visitors. ・98 57 •should limit

波線部分がなぜこうなるか理解できなかったので教えてください。

(3)(x2+212) 10 の展開式の一般項は 10C, (x2)10-. x11の項は,20-3r=11よりr=3のときである。 よって, 求める係数は 10C3=120 (1)= 10 C, x20-27 x" 10 Crx20-3

𐙚 中学生 英語 cross と across の違いを教えてください > <

a で始まる単語を教えてください🙏

) to that just before The economist described the current situation as ( the Wall Street Crash of 1929. He called on the government to act quickly to avoid a similar event.