1. Жесткость первой пружины К1=40н/м, жесткость второй пружины К2=80 н/м. Сравните силу упругости F1, возникающую в первой пружине, с силой упругости F2, возникающей во второй пружине, при одинаковом их удлинении (х1=х2).
1) F1=F2; 2) F1=4F2; 3) F2=2F1; 4) F2=0,5F1

Speaking Task 1. Choose the question from the card on the topic Entertainment and fedia^ prime prime and be ready to answer it after the teacher starts the conversation. Produce a speech by giving extended answers to the questions. Share your ideas with the class. Teacher organizes a Socratic seminar, which helps him/her to assess learners while they are speaking on the toplic Entertainment and Media and he/she prepares and cuts down questions and expressions beforehand. Learners sit in a circle and answer the question using in their speech some formal and Informal expressions to present logically connected information to their classmates. Expressions: Stating an opinion The way I see it... Sorry to interrupt, but... Is it okay if I jump in for a second? Can I add something here? Can I throw my two cents in? Not necessarily Interrupting If I might add something..... I beg to differ No, I'm not so sure about that That's for sure Expressing disagreement I'd say the exact opposite I have to side with somebody (name)on this one I was just going to say that In my opinion Expressing agreement If you ask me.. That's exactly how I feel As far as I'm concerned. If you want my honest opinion..... You have a point there That's not always the case​

9. треугольник sop = треугольнику rop по стороне и прилежащим к ней углам.

т.к. сторона ор общая, угол rpo=spo, rop=sop.

10.—

11. kmp=kpn

по двум сторонам и углу между ними.

т.к кр общая сторона. км=kp по условию,кмр=ркn.

12.авс=адс по трём сторонам.

т.к.ас общая сторона

ав=сд,ад=св.

13.асд=сдв по стороне и двум прилежащим к ней углам.

т.к. сд общая сторона

асд=дсв

адс=сдв.

14.rpq=rqs по стороне и двум прилежащим к ней углам.т.к.prq=sqrpqr=qrs rqобщая сторона.15.авд=дсв по сторонам и двум углам.т.к. адв=сдвавд=свддв общая сторона.16. ктм=stp по двум сторонам и углу между ними.ktm=stp т.к. вертикальные углыkt=tpmt=ts