ベストアンサーの方フォローします この問題が分からないので教えてください。

1 When we need to see the time, we look at clocks or watches. Today we can check the time very 置き時計 easily. However, it was not so easy long ago. Time keeping_has a very interesting history. 簡単に 長い間,ずっと 時間の計測 Ancient people used nature to read the time. About 6,000 years ago, Egyptians used the sun. 2 They put sticks in the ground, and the shadows told them the time. These were some of the first 話す。教えるの過去形 clocks in the world. 3 At night, people could not use the sun. About 3,500 years ago, Egyptians started to measure time without it. They put water in pots. The pots had tiny holes in them. The water decreased …なしで little by little. The lines in the pots told them the time. 4 About 1,500 years ago, other people used fire. They burned candles, for example.. The candles gave them light, and people saw the time by the lines on them. 与えるの過去形 線 5 About 700 years ago, people started to make mechanical clocks. At first, they used weights to power these clocks. The clocks told the hour with bells. However, the weig were big and heavy, so these clocks were difficult to move. 6 About 500 years ago, people improved their clocks. They used springs to power the clocks. The springs were small and light. So people could move the clocks easily. Eventually, people 小さい began to carry watches. 7 Today, we have clocks and watches everywhere. This is the result of many great inventions and many people's efforts. Even now, clocks and watches are improving. 8 We cannot really see time, but ancient people tried to recognize it. They used different ideas and technologies to measure it. When we look at our clocks and watches, we can easily see the time. Now it is time to recognize the wisdom of those ancient people.

赤線を引いてるところでなんで答えがmeansになるのか教えて欲しいです。 お願いします🙇‍♂️

range of tools we use is amazingly wide.(1)Tool use was once thought to be one of the features that set humans apart from other animals. To be sure, humans have developed and used mechanical, electric and electronic tools for multiple purposes.(2)In no other animals can we see such sophisticatedand elaborate use of tools. To us humans tools are an important (b)(1.meaning 2.means) to control and manipulate our physical environment. (C)(1.During_ 2.While ) the development of civilization, humans'use of tools has improved and diversified. We humans not only use tools but make and develop a variety of new ones for different purposes. We can(d)(1.even 2.ever ) use tools to make other specific tools. In addition, the use and making of tools is handed down from generation to generation. Tool use by humans is not genetically transmitted by DNA (e)(1.and 2.but)

日本語訳はこんな感じので合っていますか？

時計の針の回る方向はどうやって 決まったのでしょうか Why do the hands of a clock turn right? In ancient times, people made sundials. Thev 3 looked at them and knew the time of the day. If you look to the south, the sun moves acrosS the P sky from left to right. With the movement of the sun, the shadow of the rod turns right on the sundial face. Later, people invented mechanical clocks with hands. The hands of those clocks turned right, like the sundial shadow.

あってますか？？

Write school on the phone restaurant museum 上の4つの場面から1つ選んで、許可を求めた文を使った対話文を作ろう。 (OMay I~? の文を1回以上は使って、4文以上で書くこと。 の誰と誰の対話かがわかるように書くこと。 (teacher と student, clerk と customer など) A May forsot my bencl cose today. Im afraid you mar no. 1am usina iけ now. ILsk Yuno. I borron your mechanical pencil ? . A. 知識·技能 思考·判 住徒と壁徒の対話 f

下線部Bのpowerを使った文末の上手い訳し方が分かりません！

eede.nke.) 1011g 12ni Nelson \described\this inew design ylast yearV in the journal Nature Communicationsmmiwe lo eoievilg odT (alepe lo mstdorq oih/svloa o1 bed 6Nelson's \ soft-bodied microswimmer\ isn'ts the bonly hano-medic that researchers are/ building. Some at Drexel University in Philadelphia, Penn, created a different type to bring cancer-killing medicine to tumors.o 229ndoid So One challenge to designing robots that will go inside the bodylis\ powering B them. These robots are too small to carry an lengine or battery pack, notes Min Jun Kim, who led the Drexel team. 9nol oirt 9dil l9st bluow t2gi Kim is a mechanical engineer\(He now works at\Southern Methodist

問13を教えていただきたいです！！ 答え（1）2.0m/s （2）1.6m/s です！

式(19)は,物体が弾性力だけから仕事をされて運動する場合,その力学的 エネルギーは,一定に保たれることを示している。 一般に,物体が保存力だけから仕事をされるとき, その運動エネルギーK と位置エネルギーUは相互に変換するが, それらの和(力学的エネルギーE) は一定に保たれる。これを,カ力学的エネルギー保存の法則という。 5 law of conservation of mechanical energy カ学的エネルギー保存の法則 E=K+U=ー定…(21) ED…カ学的工ネルギー, K[J]…運動エネルギー,U[J]…位置エネルギー 適用条件…保存力だけから物体が仕事をされる場合。 この法則は,実験2からも確 注意 位置エネルギー 位置エネルギーには, 重力 10 かめることができる(探究活動G によるもの(mgh) や, 弾性力によるものkx などがあり,式(21)のびは, これらの和である。 ?) Op.134)。 間 13 なめらかな水平面上で,ばね定数1.0×10°N/m の軽いばねの一端を壁に固定し, 他端に質量0.25kg の物体をつなぐ。ばねの伸びが 0.10mになるまで物体を引いて, 静か 15 にはなした。次の各問に答えよ。 (1)ばねが自然の長さになったとき、 物体の速さは何 m/s か。 (2) ばねの縮みが 6.0×10-2mになったとき, 物体の速さは何 m/s か。 第=章●エネルギー

この2つって何が違うんですか❔

! 本VIk LiW Councll [kAunsll

至急！ 分からないので解いて教えてください🙇

問5 | う ] の中に, 適切な数字を理きなさい。 問6 次のアーオのうぅうち, チラシ及び2人の話の内容に合うものを2つ選び, その符号を香きなさい。 ア Ajunior high school student will pay 800 yen to enter the Arte and Crafta Museum. イ ike wants to take buses to visit the famous places on the leaflet. ウ をに オォ Ryo and Mike will have lunch in the Wood Park. The 1ast bus arrives at Minami Station at 6:00 pm. The One-day pa for children under 12 ie cheaper than the One-day pass for an adult 9 甘-18-公-石川-問-04 汗| 次の玉音を読んで, あとの各問に答えなさい。 Tt was the morning assembly of Shior's class. Mr. Yosbida, the homeroom teacher, said to the 員 students, “There will be an English speech contest for junior high school students next month. ou Want to join, please tell me by this weekend.” During the Junchtime break, Shiori talked with her classmates about the contest、 She said, ig the speech contest。 Do you think T can do it?" Mika, her best friend, PP “Ohthank <Sure』 mm interested in jo said, “Ofcoursel Youare really good at Engtish, so yo wl make a wonderfnl speech ou Shiori said, “but please giye me your comments when T finish witing the script" IMikka and the other stodents said. Bo, she made up ber mind. After school、oshe visited Mx. Yoghida and told him about 志. When she went home t陣at evening she started by thinking of what she would talk about。 She thought “Tive had a very good time with my classmates this year so should be about something 【 enjoyed with them ” She decided to write about some school events。 It wasnteasy to write the gcript because he ied to write many things about the events. She wrote again and again, and on te 8eventh night fniahed it by writing 'Tn thie way 1 enjoyed my school Hife with my classmates this year′ 8he thought, "TL how the script to my clasemates tomorrow. 1hope they will tike 0』 the pet morning, when she entered her classroom, she aeked Mika to read the script and When Mika finished, Shiori asked Mika said “OK,” and read 辻 carefully Mika said, “It was good 皿ve gome comrment8. Shiori thought Mika would say something nice. “How do you jke 7 mates,but.…" “But?” Shiori asked. pecause you wrote about the school events and or Mika aid “Actually T didmt fnd out what you really wanted to say. 1 think you can make 芝 ” Then betteg2 8Hiori wag surprised and said, "Oh really? Anyway, will check my script again.… d the same thing. She was very saQ Shiori asked some other students to read it, and 。the ut decided t0 rewrite the script. Every night she tried, but it was very dfficult for her。 Rinaly ja 人he seyenth day he gave up, She didmtwant to think about the speech any more. gThe next day, ghiori went to the teacherg' room to meet Mr. Yoshida。 She said, "1 showed m peech gcript to gome of my clasgmates, and they all aaid, Tdidntfind out what you yeally wanted 1 gy 8o,Ttried to ewyite it butTdidnt know what to do、 Now 1 think 1 ehouldn'tjoin the 8peet 6ntest” Mr. Yoshida read the script and gaid, "Tt is a good script, 1 think, but it will be mu etter 婦 you try harder” ぶBut./ Hestopped her and said, “Tor example, how about thinkin

このサイトのβは次の二式を満たす角度であると書いてある所が理解できません。 なぜβは次の二式を満たすのですか？ http://w3e.kanazawa-it.ac.jp/math/physics/category/mechanics/masspoint_mechanic... 続きを読む

() y<oo の場合 (不足減衰) 位置: ?=4e~Ycos(gk二og) (4, o :定数) ー(⑬③) 、 の 速度 : ッーー =テー4e-7% イッcos(et 十 o) 十 osin(cof 十 o) } =テー4eoe-7 cos(oみ十 の --- (2) ここで, は次の2式を満たす角度であ る. の cos(c一 ) = っ , sin(w一の = っ

何度やり直しても最後の3単語くらいが合わないです。

とムココ てを一 mA Vo は MP 4 2k、午 ひど Smartphones” < も20 9サ 日 Listening: Bad manners from around the world 必 Vocabujary from the news article, "Stronger Glass for MMartch the word with the best dcf mition: 1) reduce 8)_A form of Somethng that is different from the previous form. 2) tougher に)) IMade or created. 3) version cc) The abijity not to be affected by Something, especially something bad Or negatiVe. 3 inproved ⑧ Able to be seen. う) resistant に Make smaller or less in 3mount。 degree。 or size. 6) developed 6 人ん thing made or adapted fora particular purpose, especially a piece ofmechanical or electronic equipment. の visibie ~記More able to withstand difficult conditions or rough or careless treatment 8) device ヽh) Pay attention to. 9) focus on で) To complefely break or destroy 10) smash X IMade or got befter.