②（2）なんですが、 糸をつないでいる点まわりのモーメントの釣り合いからtanψ=1を求めて角ψの大きさを求めてから張力の大きさを求めたのですが、張力を先に求めてからψを出す解法はありますか？

ed "一及ぼす力の大きき それぞれいくらか。 (2) おもりを上上でと端から距離 ァ(m) の位置に置いたとき, 板は静止しているとす る。このとき ほしが板に及ぼす力の大きるはいくらか 3 5 | *nutsSst 8 zをいくとら )ると、板は支柱Cから龍れるか。 Q 生まNe ONSNc ] た tYよ\ 9 ネでつるした頂のつり合い p.85 例題1 質量 2z, 長さんの一様な棒が. その -端に取りつけられた和糸によって, 天井から つるされている。 この析の下端に. を3 図の ょうな状態で静止した。次の問いに答えよ。ただし. 重力加速度の大ききさきを9とする。 (1) 系, および棒が鉛直線となす角を. 8 れ右の図のようにの のとする。このとき tanの三2tanの |: gtw の関係が成り立つことを示せ (② eo であるとき, 糸の引く力の大き さを娘とのを用いて表せ。また, そのとき の角のの大きさを求めよ。 直方体の物体が倒れない条件 図のように, 水平面上に置いた質量 の一様 向きの力を加え, その大きさきどをしだいに大

このような問題の解き方のコツを教えてください。

次の空所( 1)一(6 )それぞれにもっとも適当な 1 語を補い, 英文を完成せよ。解答は解 答用紙の所定欄にしるせ。 For over two hundred SRy years doughnuts, wrhich originated with Dutch bakersJ did ot have holes(in the ( 1 )“the hole was an American modification that。 one introduced, redefned the shape of the pastryi "Re deep-fied doughnvt odiginatedsn sixteenth、tentury HoUandl where it was tnown as an opAoek。 or "oil cake named for its high oil content ( 2 ) with <@weetened dongh and @ometimes sugared the oil cake was brought to America/by Pilgrime)who had 1earned to make the pastry during their stay in Holland⑪ | Sman/ about the ( 3 ) ofa walnut the round oil cake in New England )acquired the ame *dough nut” while a related long twisted Dutch pastry became known as the eruMer,(from the Dutch yez, *cur1" *The holeGn the doughnu6 ( 4 )(in the Brst half6f the nineteenth century. Hanson Gregory。 a sea captain from Maine) is said to have poked holes Gn his mother's doughnutn 1847, for the simple ( 5 ) (thatitalowed for the donghnut to be cooked better "Today Hanson Gregorys coptribotion of the hole is remembered 6 NNe Rometown)6f Rodkport Maine, by a bronze sign) suggosting tat in Americs fame can be ( 6 ) even for inventing nothing.

三角関数の問題です 途中式も含めて解き方を教えてください

rus一GtS (Z) 間和ee ズZ39うと しトル そ そ デーテム 3る。う け v5 フ ZentS十Z/UTS (1) 呈量-7股多央・叶の疫 | 9|

解き方のコツを教えてください。

。 の所(1)(6)それぞでれに6っとる適当な1胡を補い。敵六を完せま。 解答は解 答用紙の所定編にしるせ。 For over two hundred SNy yearwdoughnuts, (which originated with Dutch ekermy did Got have holes(Gn the ( 1 Xihe hole was an American modifcation that once introduced, redefined the shapeQf the pastry "The deep ftied doughnut oniginated(fn sizteenth-century Holan3)twhere itwas known am an opAoek, or <oil cake|named (or its high oi centen5 ( 2 ) wih “meetened dongR and eometimes sugared: the ol cake was brought to America/by TagmyKho hed karmed e mie he peary ng ther ay in Hohea] Sman/ about the ( 3 ) ofawalnut, the round oil cake Go New ngland)acqpired the name “dough nut* while a related long twisted Dutch pastry became known asthe eller (om the Dash rer。 Yeorl の Ts holeGn the doughnu9 ( 4 )(im the Rmet hal06f the nineteenth cntnry。 Henaon Gregors, a sea cmptain fom Maine) is seid to have poked holes 4n his mothers doughnutin 1847. for the simple ( 5 ) (hatitahowed for the donghnut to be cooked better』 Trrey Hammon Gregorys contdbotion 6f the hol9ia remembered 人 his hometown)6f Rockport NMaine, by a bronze stgnl snggeeting that in Amemiee fame can be ( 6 ) ewen forinwenting nothing. ( de叙Tedter 2 Made 3 si 4 Iave efPeAret TO aro し ekiswd

4に入るのが what which that therefore のいずれかなのですがどれだと考えますか？ 私はthereforeだと思ったのですが... 答えはないです_:(´ཀ`」 ∠): which とまよったのですが、which が答えなら thatも同じ答え... Read More

When we stand outside in the sun ee tend to aabsorb hghtKhrongn PO6 9 PT Gur "skuls/od 。ithis helps to order our body dlock nterestingly birds wake up at the beginning dawyteeawee they have such thin skulls ( 4 )thelight affects ONem quickeyThe hght higgers many chemical reactions in our brains hat make us more active and happy. hb リ

関係代名詞、副詞の問題なのですが、4番はwhichですか？それともwhereですか？ 教えて頂きたいです。

1 下線部を先行詞として, 適切な関係詞を用い, 2 つの文を 1 文にしなさい。 1. He is one of the few Japanese novelists.、 They are known outside the country. 2. Do you know thereason? Hedoesn'tlike cats for some reason. 93. My grandfather often talks about the good old days. There was no TV then. 4. TIl give you some tickets to the museum. Alot of children visit .

この文を間接話法にするとどうなるのですか？ The parents said to their daughter, "Don't go outside at night."

この問題の8と9をおねがいします

水を加え十分に反応させた。このとき, 残っている気体の標準状態にお る体積は何しか。 (生 マグネシウム 7.0gに 2.0 mol/L の塩酸を 200 mL 加えたところ, 発生し, 反応しきれなかったマグネシウムが残った。 残ったマグネシ 何gか。 団 不純物を含むアルミニウム粉末がある。この粉未2.0 アルミニウムだけをすべて溶かしたところ。 0.10 mM また, 不純物は希硫酸と反応しなかった。次の間 (1) 次の化学反応式の係数(a) て(d) を求め, (@) Al + (b) HzS0。 一 (c) Alz(S( (2) 含まれていたアルミニウムは何g (3) この粉末中に含まれていたアル (4) この粉末中のアルミニウムを 希硫酸は何 mL か。 了uTSSもやKi

4番の空所に、you talkingが入るんですけど、なんでこの語順なんですか？

) Jack Kept thinking alone with ( )( )( ). (腕を組んで)(fold ) Toolcat和0 )( JA )! (手を振っている) (Wave ) 3④ Icant 人 on my reading with ( )( ) (here. (あなたたちが話しているヒ)(talk 代ャ、

なぜ④はだめなのですか？ セ　2020

5文章の左にある(])、 lm人/まが なお, 交 に答えよ< っ(A・B)に のを読み 軸 奄点 39 入間gののをし ⑥Mはパラ ey roads running throuai eartob mA res im dfferent pco に le have created vario 9 さ 才 and their uSe Lansport things. and sem and safeb。 Throughow rms Of m 、計 避 imperstive for societis 2 id ue st all aroum 7hese now cis le to move Tartes have enabled people hese roufes 記ormaien from one place to amother 9 ickiy jmformati important in our daily Hves. jistopr they have been iy on knd。 They graduay re often fonmed natural Eary routes were 0 oer iong periods of tmme while PeoPIe Pa PC jane turming point in their history arrived when the firs incant turmi led them on foot か jm andient dimes. Once this happened, people Jeeped me importance of welhmaintained routes. Therefore, towms. di and cmiire comtries improved them in order to prosper. As a resull j Became more convenient。 communities greweconomies evolved, and cuitures expanded。 The importance of land routes increased further。 especialjy after the appearance of automobiles。 ) People have estabished routes on water。too. Rivers and canals have erved as effective routes for people to move around and carry things。 For fsrance ji the od japanese city of Edo, water routes were used for the Transporration of agricultural products, seafood, and wood. which supported Te GyS lfe and economy People have also opened routes across the sea. The seaways, which developed based on winds。 waves Yater depths、 am Cestine geography, were "for the nawigation of ships。 particularly im miy by wind power Tel could hanel great dtanes and go tb places The days when they moved mai Using these sea routes Ca routes emerged, leadimg to te exchange of natural Sources, products ang ideas. Th i adi y。 ThiS in tum、helpea on の