問2の(3)(4)を教えてください

問2. ばね定数 k [N /m] (k > 0) の軽いばねがある。なめらかな水平面上でこ 自然長 のばねの左端を固定し、右端に質量 m kg] の物体を取り付けた。次に、 手で mm 物体を引っ張ってばねを自然長より cm 伸ばしてから静かに手を放した。図 0 に定義された座標軸に基づいて、その後の物体の運動について、以下の間に答 えよ。ただし,時刻 ts]での物体の位置を (t) [m] とし、ばねが自然長のときの物体の位置を原点とする。 (1) Find the restoring force F, [N] that the spring tries to return when the object is displaced by z m from its natural length. (2 points) d'z as its acceleration. dt? (2 points) (2) Find the equation of motion of the object, using the notation of (3) Find the general solution of the equation of motion of the object. (3 points) (4) Find the solution that meets the initial conditions described in the problem. Here, the moment when the hand is released is set as time t==0s. (3 points) 問3.問2では摩擦などの抵抗力がない理想的な単振動を扱ったが、実際には抵抗力が存在する。 抵抗力は速度 dt に比例することが多く、この比例定数をc[N.s/m] (c> 0) とおくと、 運動方程式は教科書 P.66 の(2.40)式として表 される。この方程式の一般解は、 教科書 P.52に示す「定数係数の2階線形同次微分方程式の一般解」として表され、 教科書 P.66 の下段3行に示すような解 a) c)となる。これらの解の導出課程を、 以下の手順に従って示せ。 d。 da. (1)(2.40)式 m = ーkc - c dt? の右辺において、c dt の項の符号がマイナスである理由を考察せよ。 dt (2点)

和訳お願いしたいです

greaty respected Greek philosopher Aristotle (384-322 BC), who claimed that heavy Objects naturally fall faster than light obiects. This hypothesis was considered to be true nearly 2000 years-mainly because nearly everyone who knew of Aristotle's Conclusions had such great respect for him as a thinker* that they simply assumed he Couldn t be wrong. Also, in Aristotle's time. air resistance was not recognized as an Iuence on how quickly an obiect falls We've all seen that stones fall faster than leaves Inuttering in the air. Without investigating further, we can easily accept false ideas. Ganleo very carefully examined 。 Aristotle's hypothesis. Then he did something that -Q 10 caught on and changed science forever. He experimented. Galileo showed the falseness of Aristotle's claim with a single experiment ー dropping heavy and light objects from the Leaning Tower of Pisa. Legend tells us that the objects fell at equal speeds. (3) In the SCientific spirit, one experiment that can be reproduced outweighs any authority, regardless of reputation or the number of advocates* CD 58

4番が分からないです！教えてください( > < )

8 英文の説明に合う英単語を答えなさい。 1. an activity that you do for pleasure when you are not working 2. the organ inside the head that controls thought, menmory, feelings, and activity 3.a building where objects of historical, scientific, or artistic interest are kept 4.a small piece of paper or card given to someone, usually to show that they have paid for an event, journey, or activity 5.a person who does something, especially helping other people, willingly and without being forced or paid to do it

関係代名詞の問題です。 私たちが公園で助けた男の人はスミスさんでした。 The man that we helped in the park was Mr.Smith. の「that」は何を指しているのですか？

答え合わせがしたいです。 解ける方がいましたら、 よろしくお願い致します🙇‍♂️🙏

間1. 5 は、それぞれ特定の単語を定義する時に示されたものです。 空 所にその対象となったと思われる最も適当な語を(a)~ (d) から一つ選びなさい。 boode () 1, it extends a long way down from the ground or If something is [ from the top surface of something. (a) wide 1 (b) shallow (c) high (d) deep To () on a) 6) A[ l is a group of people who play a particular sport or game 2 together against other similar groups of people. (a) nation 人る (d) union (b) team class aM dalyn3 3 ]is the unpleasant feeling you have when you think that you are in danger. (a) Fortune (b) Happiness (c) Fear (a) Prospect 1 have well-developed muscles and People or animals that are [ great physical ability so that they can work hard or carry heavy objects. (a) strong 4 (b) mental () gentle (d) delicate 5 When you l Jan object, it splits into pieces asa result of an accident, for example because you have dropped it or hit it too hard. ns c9vil (a) hide ne (b) break (c) protect h(d) create Yads

a.bの回答をお願いします

saw her when she was in the middle of doing something. This does n (b) I saw her doing something.= She was doing something and I saw this, | Perception Verb + Object + Base Form (not infinitive) or ~ing Form Exercise Complete each sentence with used to and the correct verb. 4 Grammar A. Hear + object + Base Form I never wanna hear you say. The difference in meaning between the two structures (a) I saw him do something. complete action from beginning to end. - He did something and l saw this. J sam mean that I saw the complete action. Examples (a) I saw Tom get into his car and drive away. (b) Can you smell something burning? Exercise Complete these sentences with the correct form of the verb. (happen) . (sing) 3. The mother listened to her daughter 1. I saw the accident 2. Listen to the birds her story from beginning to end. (tell) B. Used to From the way that it used to be, Rule Used to is used when we say that something happened regularly in the past but no longer happens. Examples 1. I used to play tennis a lot, but now I'm too lazy. 2. We used to live in a small village, but now we live in Tokyo. 1. She 2. Ann doesn't smoke anymore, but she. .my best friend, but we aren't friends anymore. 3. Ann's hair 40 cigarettes a day. long, but she cut it some time ago.

動名詞で答える問題です。 (1)が分からなくてとりあえず書いてあるのですが 合っていますか？

It's no xDe n.. Stage 2 (object 5 日本語の意味に合うように,[ ]内の語を使って動名詞を含む英文を完成させなさい。 1. あなたと夕食をごいっしょできるなんて光栄です。 Haviaa. ainnetk. yas. 2. 音楽なしで生きるなんて,あなたは想像できますか。 ABCD [have ] is an honor. [imagine] dvdna 3. 私の兄が明日の試合でホームランを打つと,私は確信している。 4 Can va aagina k without music? [hit] I'm sure of my bonen hitting bnithan a home run in tomorrow's game. 4. その国からの財政支援を期待してもむだだ。 [expect ] 201テン46ル financial* support from that country. It's no s2 5.今日私はテレビゲームをしたい気分ではない。 I don't feeke. [play ] ike. p3ieg video games today.

わかりにくいのですが2段落目の上から4行目の、there can be different shapes which are not always flat の訳し方ですが、様々な形になれるものがある？と思い、それで関係代名詞だと思ったので形は形でも平面とは限らないと言う... Read More

Jigsaw Puzzles* sold (27 The first jigsaw puzzle was made by a British man named John Spilsbi、 wem nak ede SO became popular among children in England. Until the 20th century, most jigsaw puzzles were made of wood, were expensive. Today, jigsaw puzzles are usually made of hard paper and in many different sizes. Some are as small as a postcard and others are almost as they Dg as a large room. Also, there can be different shapes which are not always Tlat*. These days, people can get puzzles that become objects such as cars or Ships. There are even some jigsaw puzzles that you cannot touch. They are on the Internet. You use your mouse* to move the pieces to make a picture. もの Doing jigsaw puzzles is now a common hobby around the world, but people enjoy these puzzles in different ways. In some countries, people like to do the same jigsaw puzzles again and again. But some people in Japan are interested in doing jigsaw puizzles just once. They put them in picture frames and enjoy looking at them. *jigsaw puzzle :ジグソーパズル *jigsaw:糸のこぎり * flat: 平らな いと たい mouse:(コンピューターの) マウス

答えを教えて下さい

1. Check the sentences which contain gerunds(動名詞)。 a. We can remember celebrating a big event. b. You might think that having this kind of memory is a good thing. C. People with (HSAM) have difficulty remembering other simple information. 2. Write the answers. * What gerund is a subject? * What gerund is an object? * What gerund takes an object?

答えを教えて下さい

1. Check the sentences which contain gerunds (動名詞) a. We can remember celebratinga big event. b. You might think that having this kind of memory is a good thing. C. ロ People with (HSAM) have difficulty remembering other simple information. 2. Write the answers. * What gerund is a subject? * What gerund is an object? What gerund takes an object?