Grade

Type of questions

Physics Senior High

x方向は力積なしの意味がよく分かりません。 教えてください🙇🏻‍♀️

チェック問題 2 固定面との斜衝突 質量mの小球を自由落下させ,傾き 30° のなめらかな斜面に衝突させたところ, 20 水平にはね返った。 衝突直前の速さを v として,次の量を,( )内を用いて表せ。 * (1) 衝突直後の速さ” (vo) * (2) この衝突の反発係数e (3) 斜面から小球が受けた力積の大きさI(m,vo) 解説 (1) なぜそのように分けるので すか? 500 m (2) 方向のみに注目して,e= どうしたらよいのか, はじめの一歩がわかり ません。 30° まずは,斜面と平行成分 (3軸), 垂直成分 (y 軸) に速度を分解して, 前中後の図をかくよ。 001 y SOD CIT y軸と逆向き ① を代入して、Iについて解くと, I = Vo それは、図のように, x 軸方向には全く 力積を受けない(重力の力積は衝突時間 が短く無視できる) から, 運動量が保存す ることと,y 軸方向は衝突面と垂直だから, 反発係数eの式が使えるからだよ。 x 方向のみに注目して、《運動量保存則》(p.139)より, 001 mvo sin 30°= mv cos 30° 09.00 1 (m) coll V₁ (m) 2 -mvo √3 標準 6分 Vo ① ( ① より ) 30% V よって、 v= v sin 30° 1 Vo cos 30° 3 (3) 方向のみに注目して,〈力積と運動量の関係》(p.137) より, mvo cos 30°+ I = musin 30° x軸方向は 力積なし 30° 30% 457- x

Solved Answers: 1
English Senior High

Aの1,2,3はこれで合ってますか? 間違えていたら教えて下さい🙇‍♀️

2 Grammar Future with will, may, and might) 4.23 You can use will to give facts or predictions about the future. adol Looking ahead UNIT 12 Extra practice p. 151 To show you are not 100% sure about the future, you can use may and might. I'll be 65 in June. It'll be expensive to travel around Europe. The baby will keep us busy! It won't be easy to find a job. I'll = / will won't = will not I may go on for a master's degree. I might not be able to afford it. You can also use will with expressions like I guess, I think, maybe, and probably. We'll probably take some time off from work. Maybe we'll move to Arizona. Avoid will to talk about plans or decisions already made. Use the present continuous or be going to. I'm going to Europe next year. I'm going to visit Paris. (NOT I will go to Europe next year. I will visit Paris.) Common errors A Circle the correct options in the conversations below. Compare and practice in groups of three. 1. A What are you going to do at the end of this course? B. I'm not sure. I guess I take /I'll take another course. C I don't know. I'm going to / I may travel abroad with my brother. He thinks his classes might / can finish early this year, so we might / will be able to go in May. Don't use can for predictions. Use may or might. I may go away for vacation. (NOT I can go away for vacation.) 2. A Are your friends going away for vacation next summer? B Well, they're all going to do / will all do different things. One friend is going / will go to Istanbul. I'd love to go, too, but I don't know. I won't / I might not be able to afford it. C Four of my friends will / may be 21, so we're having have a big party. It's going to be fun. 3. A Are you going to look for a new job next year? B Actually, I just got a new job. I'll / I'm going to work for the local newspaper. How about you? C I don't know. I think I'm studying / I'll study for a certificate in nutrition. I mean, I'll / I may probably go back to school because I'm pretty sure I won't / might not get a job. Give your own answers. Who has interesting plans?

Solved Answers: 1