物理ばねのつりあいについてです (2)の解説にある「x＝8.0×10-²」とはどういうことでしょうか？；；

入し 57. 重さと質量 地球上の重力加速度の大きさを9.8m/s2 とし, 月面上の重力加速度の 大きさを地球上の であるとして,次の各問に答えよ。 (1) 地球上での重さが294N の物体の質量はいくらか。 (2) (1)の物体が月面上にあるとき, その質量はいくらか。 (3) (1)の物体が月面上にあるとき, その重さはいくらか。 [知識] 58. 糸の張力図のように, 質量 1.0kgのおもりを天井から糸でつるし て静止させた。このとき, おもりが受ける糸の張力の大きさはいくらか。 ただし,重力加速度の大きさを9.8m/s2 とする。 例題 8 > MOE 60. ばねのつりあい表は, 軽いばねにさまざまな質量の おもりをつるし,ばねの自然の長さからの伸びを記録した ものである。 重力加速度の大きさを9.8m/s2として,次の 各問に答えよ。 (1) 自然の長さからのばねの伸びx [m] を横軸に, ばねの [弾性力 F〔N〕 を縦軸にとったグラフを描け。 1310 (2) グラフから, ばねのばね定数を求めよ。 [知識] 59. ばねの弾性力 自然の長さ 0.200mの軽いばねに, 40Nの力を加えて伸ばすと,長 さが0.240mになった。 重力加速度の大きさを9.8m/s2 として,次の各問に答えよ。 (1) ばねのばね定数を求めよ。 (2) ばねに質量 5.0kgの物体をつるすと, ばねの長さはいくらになるか。 ヒント ばねの弾性力の大きさは, ばねの伸びに比例する。 F₁ sto(s) () NA F All 61. 力の合成と成分 図(a), (i) の xy 十面上における力上 〜 F について,次の各問に 答えよ。 14.0N 01.0kg 8.0 (1) 豆~下の成分, y成分をそれぞれ求めよ。 (2) 図(a), (b)について, 3つの力の合力のx成分, y成分をそれぞれ求めよ。 (3) 図(a), (b)について, 3つの力の合力の大きさをそれぞれ求めよ。 SUCORE.CO XOLOS. (a) (b) NA おもりの自然の長さから 質量〔g〕 の伸び〔cm〕 100 2.0 200 4.0 300 6.0 400 例題8 14.0N 第Ⅰ章 運動とエネルギー [n]として, つりあいの式を立てると 1.0×10²×x-5.0×9.8=0 ばねの長さは, . ばねのつりあい 0.200+0.049=0.249m x = 0.049m 答 (1) 解説を参照 (2) 49N/m につるしたおもりが受ける重力と弾性力は、つりあってい時 フックの法則 「F=kx」 から, F-xグラフの傾きは、 ばね定数に相 することがわかる。 説 (1) おもりが受ける重力と弾性力は, つりあっている｡し たがって,弾性力の大きさFは,重力の大きさ 「W=mg」 から求め られる。 2.0N 100gのおもり: F=0.100×9.8=0.98N 200gのおもり: F=0.200×9.8=1.96N 300gのおもり: F=0.300×9.8=2.94N 400gのおもり: F=0.400×9.8=3.92N 2.9N 3.9N 表で与えられているばねの伸びはcmなので,これをmに換算し, グ ラフは図のようになる 01. の合成と成方 (2) フックの法則 「F=kx」 から, ばね定数はF-xグラフの傾きに相 当する。 x = 8.0×10mのとき, F=3.9N と読み取れるので, 3.9=k×8.0×10-2 k=48.75N/m 49 N/m (1) F₁-(ON, 4.0N), F₂=(-1.0N, ON) F= (4.0N, ON), F=(2.0N, 3.5N) 成分は, F(N) Just Fay=4.0sin60°=4.0x- 4.0 3.0 2.0 1.0 F=(-6.0N, ON), F=(2.0N, ON) (2) (a) x 3.0N, y: 4.0N (b) x -2.0N, y: 3.5N (3) (a) 5.0N (b) 4.0N 指針 それぞれの力の成分は, 図から読み取り, 三角比などを用いて 求める。 合力のx成分,y成分は,各力のx成分, y成分の和に等しい｡ また, 合力の大きさは, 三平方の定理 「F=√F2+F」 から求める。 解説 (1) 1~F3,F's, Feの成分は,図から読み取る。 1 2 の成分は, Fax=4.0cos60°= 4.0 x = = 2.0N √3 2 0 =20√3=2.0×1.73=3.46 -3.5N (2) 図 (a)における合力のx成分は, Fx=0+(-1.0)+4.0=3.0N 成分は, Fy=4.0+0+0=4.0N 図(b) における合力のx成分は, Fx=2.0+ (-6.0)+2.0=-2.0N 成分は, Fy=2.0√3+0+0=3.46 3.5N (3) (2) の結果から, 三平方の定理を用いると, 図(a):√3.02+4.02 = 5.0N 図(b):2.02+(2.0√3)=4.0N 別 直角三 比を を求 bas 4. 4

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ⅡI. 次の 17 17 18 19 20 21 22 23 から一つずつ選びなさい。 Her ( 23 の各英文の空欄に入る最も適切なものを,それぞれの中 today presentation 3 presentation today The new ATM is easier for ( ) left nothing to be desired. visual impairing 3 visually impairing killing 3 for which dies ones Food contamination is a serious problem in the U.S., ( year. given The 21st century has ( The results of the experiment were greatly different from ( expected. + because 3 is that ) people to use. 2 that presentation's today today of presentation making to oblige 3 obliged to make visual impaired visually impaired 2 seen 2 with killing 4 the death of 3 which One of the main causes of the declining birthrate in Japan ( chosen to remain unmarried. ) about 5,000 people every 3 resulted ) the rise of various new business models. ) the researchers had 2 is the reason 4 so that 4 what Some workers just seem to follow orders and become confused when ( decisions. 4 appeared ) more people have making obliged to obliging to make ) their own

この証明に間違っているところはありますか？

加藤くんは、「すべての三角形は二等辺三角形である」ことを 次のように証明した。 この証明の間違っている点を指摘し訂正せよ < 証明 > A △ABCにおいて、辺BCの中点をM, ∠BACの二等分線と辺BCの垂直二等分線 の交点を P, Pから辺ABおよび辺 AC へ引いた垂線の足をD,Eとする。 B △BDP と CEP において XOPISU D P すなわち AB=AC ゆえに, ABCは二等辺三角形である。 M E △ADP と △AEP において ∠ADP=AEP=90°, APは共通, ∠DAP=∠EAP であるから、△ADP≡△AEP である。 ゆえに, AD = AE...① △BPM と CPM において 7(1-0)58-40- JARST ∠BMP=∠CMP=90℃, PMは共通, BMCM であるから △BPM ≡△CPMである。 ゆえに, PB=PC ...② ∠BDP=∠CEP=90°, ②, BM=CM であるから, BDP ≡△CEP である。 ゆえに, DB=EC ...③ ①,③より AD+DB=AE+EC

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ⅡIⅠ. 次の 17 17 18 19 20 21 22 23 から一つずつ選びなさい。 Her ( 23 の各英文の空欄に入る最も適切なものを、 それぞれ~ の中 today presentation presentation today The new ATM is easier for ( visual impairing visually impairing ) left nothing to be desired. killing 3 for which dies ones + given Food contamination is a serious problem in the U.S., ( year. The 21st century has ( 3D is that The results of the experiment were greatly different from ( expected. because 2 that 2 presentation's today 4 today of presentation ) people to use. 2 2 seen making to oblige 3 obliged to make visual impaired visually impaired with killing 4 the death of which One of the main causes of the declining birthrate in Japan ( chosen to remain unmarried. ) about 5,000 people every 3 resulted ) the rise of various new business models. ) the researchers had 2 is the reason so that 4 what Some workers just seem to follow orders and become confused when ( decisions. 4 appeared ) more people have making obliged to obliging to make ) their own

こちらのプリントの回答教えてください。 よろしくお願いします。

4 eehaupbsorl elstog 空欄にあてはまるものを (A)~(D) の中から選んで記号を書きましょう。 rinom soon tundA (8) 1. My first of Toronto was very positive. (A) impressed (B) impressing (C)impressive (D) impression swdua vd oo visuay 1 (5) 3. 2. The special equipment was (A) originally (B) origin (C) original (D) originality 4. The manufacturer (A) produces vaboj alriemriserter prind soinom bib vilW..t A teacher's class. Sum ob incinu vertone (A) friendship (B) friendlily (C) friendly (D) friendliness Autoledad blow approach makes new students feel comfortable in their new es new students fee (B) has produced shwob trand enirkham y 5. It is necessary that the applicant 8. Would you mind (A) open made for those who have mobility problems. mismo2( bloo out a'fariT (8) Of(0) tripim men (8) TV sets in developing countries ten years ago. (D) has been produced (C) produced (A) fill (B) filled (C) fills (D) would fill 6. Tomoko invited me to see the musical with (A) she (C) (B) heraners 10. Is there anyone (A)whom blueWF Tesy jasi cio 7. The CEO by the charity foundation to speak at their annual conference, but he had to decline the request because of a scheduling conflict. (A) asked (D) had been asking (B) was asked (C) has asked 9. The meeting will be held (A) in dar out the form before the job interview. toy bollit need cen (A) admun orong olidam ym e'evgH (8) Jeneves need even ment (2) eldabil opening prupiolansi (B) whose blow reiwi at sol no (D) herself them. the window for me? vietne.m (C) to open (D) to be opening Houp (0) (B) on (C) for (D) at nismen (0) Meason (2) gribnstalue (8) 10:30 in the conference room. is against this alternative proposal? (D) which m) boysin .GP .er Deda briced OS eldialval (A) 11. Tim is as as Linda. (A) more intelligent (B) intelligent (C) less intelligent (D) better intelligent for storage. (A) designated (B) detained (C) reciprocated (D) signified 12. According to the proposal, a large block of rooms in the east wing of the new building will be

こちらのプリントの回答教えてください。 よろしくお願いします。

4 eehaupbsorl elstog 空欄にあてはまるものを (A)~(D) の中から選んで記号を書きましょう。 rinom soon tundA (8) 1. My first of Toronto was very positive. (A) impressed (B) impressing (C)impressive (D) impression swdua vd oo visuay 1 (5) 3. 2. The special equipment was (A) originally (B) origin (C) original (D) originality 4. The manufacturer (A) produces vaboj alriemriserter prind soinom bib vilW..t A teacher's class. Sum ob incinu vertone (A) friendship (B) friendlily (C) friendly (D) friendliness Autoledad blow approach makes new students feel comfortable in their new es new students fee (B) has produced shwob trand enirkham y 5. It is necessary that the applicant 8. Would you mind (A) open made for those who have mobility problems. mismo2( bloo out a'fariT (8) Of(0) tripim men (8) TV sets in developing countries ten years ago. (D) has been produced (C) produced (A) fill (B) filled (C) fills (D) would fill 6. Tomoko invited me to see the musical with (A) she (C) (B) heraners 10. Is there anyone (A)whom blueWF Tesy jasi cio 7. The CEO by the charity foundation to speak at their annual conference, but he had to decline the request because of a scheduling conflict. (A) asked (D) had been asking (B) was asked (C) has asked 9. The meeting will be held (A) in dar out the form before the job interview. toy bollit need cen (A) admun orong olidam ym e'evgH (8) Jeneves need even ment (2) eldabil opening prupiolansi (B) whose blow reiwi at sol no (D) herself them. the window for me? vietne.m (C) to open (D) to be opening Houp (0) (B) on (C) for (D) at nismen (0) Meason (2) gribnstalue (8) 10:30 in the conference room. is against this alternative proposal? (D) which m) boysin .GP .er Deda briced OS eldialval (A) 11. Tim is as as Linda. (A) more intelligent (B) intelligent (C) less intelligent (D) better intelligent for storage. (A) designated (B) detained (C) reciprocated (D) signified 12. According to the proposal, a large block of rooms in the east wing of the new building will be

英検準1級の添削お願いします。 Communication through computers or smartphones has good influence on people. I think that communication through comput... Read More

9002N port 1 HURRAYS No Date Topic Communication through computers or smartphones has good influence people Points = time difference, share the same messages, take face to I think that Communication through computers or smartphones had bad influence on I have two reasons to support people. my opinion. First of all, it makes people not to talk face to face. These days, many people use a phone while they communication eachother. For example, they use message and call by phone Therefore, they don't have an opportunities to talk directly. Second of all, sometimes it makes us misunderstand. In particular, using message is hessesarly to communicate Caused misunderstand. in writing and thus, it This situation have a neggative effect on relationship at the worse. case.. ectly call by phone at the worse case. at worse, In the worst case, According to the reasons I mentioned above, Communication through computers or Smartphone is not good for us.

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1 Is polite to elderly people." Vash Pre) 2 Been 3 Be 2 I left my basketball shoes somewhere, so I yesterday. couldn't 2 cannot 3 may not [21] nsw 1.21 on the island. The people there only speak Spanish. isn't spoken 3 is spoken 66 English 3 doesn't speak Ignal ni aprilris & gministqx30 boog asw In610 Tortoid Mar Helen and I exchanged e-mail addresses 4 each other. O contact 2 contacted 3 to contact "I don't like winter in Hokkaido because 2 so 651 190002 Tom helped the elderly lady 5 carried to carrying VIEndil edt 16 gewan blo szedT 81 This is the 6 book of the eight books on this bookshelf. 910 more interesting most interesting 3 as interesting moil 15119 or Legged asw spizzal er If I 7 in Europe, I could go to some famous museums.atog 0 will live 2 lived 3 live her bag. 3 carry 2 play in the game vibroint 260 8 is eight thirty now. I have to leave home. That There 3 It lutholos 2 [TS] 'Stop! You 11 have to Just bas sist 9 3 although 91A 0 [OST] yod sdT OS BR boonsb it's too cold." not gnilool m'I IS I bet new W SSE 10 enter the room now. The teachers are having a meeting there." 3 Aren't 1 Can't 2 Don't cross the street when a car is coming." 3 should 2 must not

どうしてこの日本語になるのか教えてください！ 解説よろしくお願いします🙇🏻‍♀️💦

Y!mobile .ll x ← 英語 3 [80 17:40 1.0 In the first lecture, Professor Smith buried how important it was to take good notes. 日本語 : Ba 最初の講義で、 スミス教授 は、 良いメモをとることがい かに重要であるかを説明しま した。 Saisho no kōgi de, Sumisu kyōju wa, yoi memo otoru koto ga ikani jūyōdearu kao setsumei shimashita. + 新しい翻訳

穴埋めして欲しいです🥲

42 EXERC 1 イラストを参考にして、ふき出しの中に合うものを下の単語から選んせよう。しか come/do/have/look/pass/say/wait (11) ) cheese! 1 4 ( Daisuke, ( your homework. 3 ( 1. Sit down. →( 2. Do that. → ( 3. Be late. ( ) a nice trip! 4. Play tennis. → ( 5. Go fishing. → ( 6. Clean this room. 7. You ( 8. I ( m させよう。(p.40 ) 1. Last year she ( 2. I ( ) 2 ( 5 2 1~3は｢~してはいけない」 という文を作ってみよう。 4~6 は｢~しましょう」 という文を作っ E5-2 てみよう。 (p.39) )( )( )( )( ) ( ) ( ) busy yesterday, but I ( ウェア 3. Today the weather ( 4. Where ( - He ( スニーカァズ 5. Don't buy these sneakers. They ( 6. ( ) you hungry now? ) here and ) at this! ) 15, *so she ( ) Daisuke now? )( )( )( ) in Osaka last week. ) ( )( 3 ) ( 6 ) late for school yesterday. ( please. ). ). ) ( am/is/are (現在形) または was / were (過去形) のいずれかを入れて, 英文を完成 E5-3 ). ) nice, but yesterday it ( ). ). ) a minute, ) 16 now. ) free today. ) me the salt, please. VENE イクスペンスィヴ ) expensive. ミニッツ ) in his room *ten minutes ago. * 「今から 10 分前」 * 「だから」 ) very cold. 4 1. 「 2. 3