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物理 高校生

答えはあるのですが問題の解き方がわかりません。 式など詳しくお願い致します。

年 練習問題 3. 水平ばね振り子 図のように,なめらかな水平面上で, ば ね定数4.9N/m のばねの一端を壁に固定し,他端端に質量0.10kg の物体をつける。物体を引つ張り, ばねを自然の長さから 0.10m 引き伸ばして静かにはなした。ばねが自然の長さのと 000000000000 きの物体の位置Oを原点とし,右向きを正としてx軸をとる (1) 物体は単振動をする。単振動の振幅と周期をそれぞれ求めよ。 0 0.10m ズ 自然の長さ 重m こけ は, 答振幅0| 0.9-. 周期 (2) 原点0をはじめに左向きに通過するのは,手をはなしてから何s後か 0.22s後 答 4.鉛直ばね振り子 ばね定数 49N/m のはねの一端を天井に固定し. 他端 に質量 1.0kg のおもりをつるす。 つりあいの位置から, さらにおもりを 鉛直下向きに 5.0×10-2m引いて, 静かに手をはなす。 重力加速度の大き さを9.8m/s? とする。 (1) 物体が受ける復元力の最大値は何Nか。 MIX ね で の つりあい の位置 ↓5.0×10-m 2.5N 答 (2) この単振動の周期は何sか。 1.43 (3) おもりが最高点に達するまでの時間は, 手をはなしてから何s後か。 0.455 答 5.単振り子 長さ 0.80mの単振り子がある。重力加速度の大きさを9.8m/s? とする。 (1) 単振り子の周期は何sか。 / SIE (2) 単振り子の長さを調節して,周期を2倍にしたい。長さを何mにすればよいか。 答 3.2m 答 s7 6.単振動のエネルギー なめらかな水平面上で, ばねの一端を壁に固定し, 他端に質量 0.20kg の物体をつけて単振動をさせた。その振幅は4.0cm, 周期は0.40s であった。 (1) 物体の単振動のエネルギーは何Jか。 3.1X10-35 答 (2) 振幅を2倍にすると, 単振動のエネルギーは何倍になるか。 千倍

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英語 高校生

これが何の教材か知りたいです。知っている方いれば教えてください。polestarⅢの問題集みたいなやつです。

LESSON 3 Paragraph 3 An Appalling Waste of Food (教科書 pp. 18~19) クラス 番号 名前 130 Read the passage and answer the questions below. Obviously, we need to pay more attention to shopping and eating habits. It is not uncommon for shoppers in the developed world to throw away as much as half the food they buy. The tendency to indulge is driven by marketing schemes that offer “buy one, get one free,” even if we really do not need that second item. It is hard to say no to a bargain. We need to learn to say “no" more effectively. Indeed, consumers need to be more discerning throughout their shopping experience and be vocal in words and deeds. The study of shopping habits is extremely advanced and corporations live and die by their data. If consumers make a conscious effort to change their habits, (a)retailers will notice. Consumers can also make better use of food banks and other resources that help the hungry and (b )fortunate. On the individual level, they need to be conscious of the ( b ) fortunate before they throw good food out. And, they too should be encouraging the organizations they work for and the places they shop to be equally solicitons of the noody Education should emphasize the neea w avoid wasting food. Again, it is all abont snding sianele Tt is unrealistic to expect to eimimate an waste in food. But the idea that one-half of food production is wasted-and that much of it is because of aesthetic reasons is intolerable. 1.What does phrase (a) imply? (4点) ア. retailers will notice the importance of consumers' shopping and eating habits イ. retailers will notice shoppers don't want so many items ウ. retailers will notice they should change their marketing schemes 2. Fill blank (b) with the most suitable word. (4 点) 3. Choose the best answer to fill each blank. (4 点×2) 1)“Buy one, get one free” campaign Diswell known to shoppers in the developing world のis driven bythe tendency to indulge shoppers' habits Boften makes us buy things we don't really need Oencourages us to say “no” to a bargain 2) Consumers should be pushing companies and shops Dto use food banks regularly Onot to throw out food products before the sell-by dates Beducate children to avoid all kinds of waste' のto be conscious of the needy PutT (True) or F (False) in the brackets. (2点×3) ア、 We should be more careful about buying and eating imported food. イ. Sending signals that we are changing our shopping and eating habitsis very important.. ウ. We need to stop disposing of food because of aesthetic reasons. CDの-26 istening quiz : Answer in English. (4点×2)

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英語 高校生

合っているか教えてほしいです。

4 次の英文を読んで, あとの問いに答えなさい。 Many of you know that curry ( ① ) born in India. ②However. did you know that Indian people do not call their dishes "curry"? British people began using the word “curry," In 1772, Warren Hastings introduceda recipe for curry from India to the UK. He also brought back rice with many spices. ③After that, British people started eating curry withrice. In the early 19th century, the first curry powder appeared in the UK. Until then, mixing the many spices for curry was hard work. People were ( ④ ) to make curry easily with the curry powder. So, curry spread across the UK. (1) のの( )に入る適切な語を答えなさい。 (5点) ( was ) (2) 下線部2を日本語にしなさい。 (6点) L(7G、あなたは、インドKoカレーヒとチくでいi↓uこをを実ゅって 1(ますか。 (3) 下線部3の After that が指す内容を日本語で答えなさい。 (6点) ウォーレンハイティングのイギリスにイドがらのゆレーのしンピを紹介 (たこを。 )に入る適切な語を1つ選び, 記号で答えなさい。 (4点) エ. going (4) のの( ア. can イ. have ウ. able ( ウ (5) 次の質問の答えになるように, 空所に適する語を書きなさい。 (各6点) 1. Who began using the word “curry"? ( Briti'sh)( people )did. 2. When did the first curry powder appear in the UK? the )( )( enrly ) ( 1ath ) It appeared in ( ( (rhtuby ). curry hard? 3. Was mixing the many spices for ー( Yes ,it(

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英語 高校生

答えがないので教えてほしいです 途中まではあってるかわかりませんが 考えました(2枚目です) よろしくお願いします!

Vocabulary CD impróve (v) な集 to become better, or to make something better runway (n) ってうう avery long surface like a wide road, that aircraft leave from and come でう3 fáscinating (adj) down on extremely interesting mixture (n) 混信物a single substance made by mixing several substances together populátion (n) - the.number of people or animals living in a particular area, country, etc. résident (n)尾住看 someone who lives ina particular place éthnically (adv) éthnic (adj) R援 relating to a particular race, nation, tribe, etc. FAN-ス divérse (adj) very different from each other divérsity (n) 角藤性 a range of different people or things religion (n)京烈 belief in one or more gods, or a particular system of beliefs in one or more gods Vocabulary Quiz Check the meaning of the words above and put them into the blanks. Change forms if necessary. 1) Icannot stop reading his novels. They are so ( 2) Do some exercises in the textbook to ( )your math skills. What is the ( ) of Tokyo? 4) Pour .cake( ) into a pan and bake it for 45 minutes. 5) The city prides itself on its ethnic ( brenk e9も 6) The airplane braked hard when its wheels touched the ( プレーキ 7) Canada is a culturally ( ) nation. 8) Shinto isa( ) that is practiced only in Japan. 9) The ( ) of the city protested the high taxes. こうきす。 ) and historically related. 10) These two areas are (

解決済み 回答数: 1