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理科 中学生

この問題の(4)教えてください

5 6 〔分] (1) 流れる向きが周期的に変化している電流を, 交流という。 家庭のコンセントに供給されている電流は, 交流である。 な お、乾電池の電流のように、一定の向きに流れる電流は,直 流という。 (2) 消費電力が1200 W の状態で使用したときは12A, 消費 電力が600W の状態で使用したときは6Aの電流が流れる。 (3) 600 〔W〕 x 30[s] = 18000[J] (1) 同じ大きさの電圧を加えたとき, 抵抗が小さいほど流れ る電流は大きくなり, 電力も大きくなる。したがって, 抵抗 が小さい電熱線Aのほうが, 電熱線Bよりも電流は多く流 れ 電力は大きい (2) 電熱線Aに流れる電流は, 6 (V) 2[Ω] は, 3 [A] × 6 [V] = 18〔W〕 となる。 これより, 5分間電流 を流したときの電熱線の発熱量は, 18 〔W〕 × 5 × 60 [s] = 5400〔J〕 (3) 電熱線Aに加える電圧を3Vにしたときに流れる電流の 大きさは1.5A なので、電力は1.5〔A〕 ×3〔V〕 = 4.5〔W〕に なる。電力の大きさが1になるので、水の上昇温度も 1/4に = 3 〔A〕 なので、電力 なる。 図3より6Vのとき、電流を5分間流すと8℃ 上昇して いるので,3Vのとき、電流を5分間流すと2℃上昇するこ とがわかる。したがって (0.0) と (52) の2点を通る直線 を引けばよい。 (4) 並列回路では、加わる電圧の大きさは一定なので水の上 昇温度は, ビーカー Ⅰ >ビーカーⅡIである。 また, 直列回路 では, 流れる電流の大きさは一定なので、電熱線Aに加わ る電圧よりも電熱線Bに加わる電圧の方が大きいため、水 の上昇温度は, ビーカーⅣ>ビーカーⅢである。 直列回路全 体の抵抗の大きさは, 4 + 2 = 6 [Ω]なので, 回路全体に流 6 (V) =1 [A] であるから, ビーカー 6 [Ω] れる電流の大きさは, Ⅳの電熱線Bの電力は4W。 ビーカーⅡIの電熱線Bに流れ 6 〔V〕 = 1.5 〔A〕 なので, 電力は9W で 4 [Ω] る電流の大きさは あるから 水の上昇温度は, ビーカーⅡI>ビーカーⅣVである ことがわかる。したがって, 水の上昇温度を大きい順に並べ ると, I > ⅡI>Ⅳ> ⅢIとなる。 図 消費電力が から1つ選び、 何Jになるか。 電熱線 B (4Ω) BAX3V A (① 電熱 熱 電熱 電熱

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英語 中学生

下線部(1)を並べかえてくださいm(_ _)m

"How are you?" is a nice question. It's a friendly way that many people greet each other. But "How are you?" is also a very unusual question. It's a question that often doesn't have an answer. s "How are are you?" the When a person meets a friend on the person doesn't really want to hear an I with wrong what is (1) (7 me street and asks answer such as "I really don't know I thought I had a cold. ). I took some medicine, but that didn't help much, so I have to go to a hospital." The person who asks "How are you?" wants to hear the answer "Fine," even if the other person isn't ( 2 )! The reason is that "How are you?" isn't really They are simple ways of greeting a (3 ), and "Fine" isn't really an answer. people and saying "( 4 )” boog aleat Sometimes, people also don't say exactly what they mean. For example, when someone asks "Do you agree?," the other person might be thinking "No, I disagree. I think you're wrong." But (5) it isn't very polite to disagree so strongly, so the other person might say, “I'm not so sure." L say that you don't agree with someone. It's a nicer way to savongob a gni People also don't say exactly what they are thinking when they finish *conversations with other people. For example, many con conversations over the phone end when one person says, "I have to go now." Often, the person who wants to "I have finish the phone conversation gives an excuse: "Someone's at the door." to *put away the *groceries." "Something is burning on the stove!" The excuse might be real, or it might not be. Perhaps the person who wants to finish simply doesn't want to talk any more, but it isn't very polite to say (6) that. The excuse s more polite, and it doesn't hurt the other person's feelings. *Whether they are greeting each other, talking about an opinion, or ending a onversation, people often don't say exactly what they are thinking. mportant way that people try to be nice to each other, and it's all part of the ame of language! It's an * (Express Ways 2, Pearson Longman -

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英語 中学生

1部だけでも大丈夫です。答えを無くしてしまって、分からないので教えて欲しいです

40 11 次のCとDの関係が AとBの関係と同じになるように, C A B trains leaf (1) train (2) woman foot dish. (3) tomato (4) water tea (5) child (6) you (7) my (1) 次の各組の文がほぼ同じ内容になるように, (My uncle teaches English. (My uncle is (It snows a lot in February. They have a lot of Are these our tennis balls? Are these tennis balls Those flowers are very beautiful. (2) (3) women tomatoes a glass of water two children (5) your mine English no Japanese it her に適する語を書きなさい。 D に適する語を書きなさい。 in February. very beautiful flowers. There wasn't anyone in the classroom after school. There in the classroom after school. (3) Whose watch is this? (下線部を複数形にかえて) → Whose (4) His sister saw someone in the garden. (XIC) に適する英語を書きなさい。 3 次の文を 内の指示にしたがって書きかえるとき (1) There were some oranges in the refrigerator. (下線部を単数形にかえて) →There (2) Kenji brought the big table here himself. (下線部を Kenji and I にかえて ) the big table here 次の対話文がなりたつように, に適する語を書きなさい。 (1) A: There are four seasons in a year. How many B: There are twelve. (2) A: What are doing? B: We're carrying this big box to the gym. (3) A: Are those children your brothers? B: Yes, are. I must take a two of tea in the refrigerator. is very heavy. to the park. are there in a year? in the garden? [5] (1 (2 (3 (4

未解決 回答数: 2
英語 中学生

問2から問4までの解説お願いします🙏

Reiwa Center Sports & Culture Programs Weekday activities From July 20th to August 27th Activity 1: Volleyball Monday, Thursday, Friday A Time 9:00 12:00 (s Practice hitting and receiving balls, ereds 19v and play games after that. Activity 3: Baseball id Wednesday, Thursday, Friday >)< 木 Time 13:00 - 16:00 Fees *fee # 1 activity : Practice playing catch and hitting 10 tuod Ted s'ai sennil balls, and play games after that. hirm us to t i in os all 3 activities:v $8 Activity 2: Music Monday, Tuesday, Thursday k 木 Der E$3 doo naje Time 9:00 - 12:00 Luoy.ai sids 89 90198 Activity 4: Art Tuesday, Wednesday, Friday "Ki 2 won 17 oli Time 13:00 - 16:00 Thesteni ades nomel beded, Draw pictures and fold paper to make now Practice playing musical instruments, DA UOOL and play on stage. on llomis dolls or animals. 2 activities: wen ed od 4 activities: siq aidquq $10baladrok LAORI JUMOSO9* bas When you come with your friends, you will get a 20 percent discount each. sigle (Rivili You have to make a call ahead to make an *appointment. *appointment ** Jml 08 82001 $5 YOM ladandTim You have to come to the Reiwa Center 15 minutes before the activity. 08 mpmal gdad sw.bluoda glad w bluode 001 misel of snew I foaisen wen ve vo Call the Reiwa Center at 333-123-654310 sig umug smor teg spinave edini nieque.edi 12 On what day of the week do they have no activities at the Reiwa Center? Joodse mot emod ten Hoy Roig blad of 2 If you join Activity 1 and Activity 3, how much should you pay? UO 3 If you have three activities with your friends, how much should you pay? NO 4 If you join Activity 4, what time do you have to come to the Riewa Center? Tanginot rannch ob tad

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