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物理 高校生

202の(3)を教えてください。(2)と同じになると思いました。

こり、 という. 分子内部での電子 より電荷のかた この現象を利用している.また, (3) )のかたよりによってお 200 (クーロンの法則) 次の問いに答えよ. クーロンの法則の比例定数はk=9.0×10N・m²/C2 とする. (1) 2つの点電荷g1 = 3.0×10 C, g2=6.0×10 Cを3.0m離しておくときの静電気力の大きさ は何N か. 20×10-12 12×1.3×101 1.8×10-2N (2) 2つの点電荷g1 = 3.0×10 C, g2=6.0×10 Cの間に0.20Nの力がはたらいた. 点電荷 間の距離は何か。 =9.0×109.3.0×106×6.0×10%= 390x 10'm 3点電荷71=3.0×10 °Cと点電荷g2 を 1.0m離しておいたら270-Nの力がはたらい た点電荷Q2の電気量は何Cか. 9.0×104×3.6×106Q2=27×10-3 H Q2 28×6-3 9.5×10°×3×107 練習問題 A 201(クーロンの法則)+3.0×10 C, -1.0×10-Cの電荷をもつ同じ大きさの2つの小さな 金属球が0.30m離れた位置におかれている。 クーロンの法則の比例定数を9.0×10°N・m²/C2 とする. (1) 2球が互いに及ぼしあう力の大きさは何Nか、またそれは引力か斥力か. 次に2球をいったん接触させた後,再び 0.30m離した. (2) 各球のもつ電荷はそれぞれ何Cか. (3)このとき、2球が互いに及ぼしあう力の大きさは何Nか.またそれは引力か斥力か. 202. (静電誘導と誘電分極) 材質と大きさが同じで、電荷をもっていない2つの金属球A,Bに 帯電体Cを近づけて, 図のように次の順に操作をするとき, 金属球の表面に現れる電荷の分布を 図に示せ. C A B (1) 接触しているA,BのAに負の帯電体Cを近づける. (2) Cを近づけたまま, AとBを少し離す. (3)(2)の状態から Cを十分遠くに離す. B (2) (4)(3)の状態から, A, B を十分遠くに離す. A B A,Bを不導体(誘電体)でできた球D,Eにかえて, (3) 上の(1)~(3)と同じ操作を行う. B (5) (3)のとき,D,Eの表面に現れる電荷はどうなるか. (4) 文章で答えよ.

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英語 中学生

いの答えと考え方を教えてください。

5 10 15 20 25 30 The Olympics were held in Tokyo in 1964. A few years ago before the Olympics, Japan had a big problem. It was a problem of communication. Many foreign people didn't visit Japan, and we had only, Japanese signs. For example, words like "i" or "" were on toilet doors. These signs were not understood by many foreign people. Japanese people at that time needed to make signs in many different languages for foreign people. But when they put many words on one sign, the "letters became too small. They could not easily read the sign. They had to think of ) signs for foreign people. Mr. Masaru Katsumi, a leader of a design team for the Olympics, had a great idea. everyone /to/ was easy / thought / understand he forit pictures. He wanted to make picture signs. These signs are called *pictograms and are used in many places now. Picture 1 Picture 2 Picture 3 Look at these pictures. Picture 1 shows a shower. Picture 2, shows a toilet. Picture 3 shows a restaurant. Foreign people can easily understand what each picture shows. They had to make pictograms which everyone could understand without any trouble. When they started to make them, one of the pictograms was a shower. Many Japanese people didn't know about showers at that time and didn't have one at home. One of the designers didn't even know the word "shower." One officer had to explain how to use it with a photo of a shower. The designer made the pictograms through the officer's words. With a lot of trouble and hard work, twelve designers needed three months and made pictograms for the Olympics. When the last pictogram was finished, Mr. Katsumi said to all the designers, "You did a great job, but this work is not for us. We did it for all Japanese people. Please write your names on this paper." The paper said that they'd like to give up the *copyright to the pictograms. They wrote their names on the paper. They gave up the copyright. One of the designers said, "Mr. Katsumi hopes that many people in many places will use the pictograms in the future. Money from the copyright is not important to Mr. Katsumi. He is proud that he is one of the members who worked for the Tokyo Olympics." In 2020, we are going to have the Olympics in Tokyo. Our life will change a lot. What kinds of new signs or pictograms will we see around us? (E) letter pictogram ピクトグラム(絵文字) designer www. デザイナー officer 役人 copyright 著作権

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