Груз массой 0.8 кг висит на вертикальной невесомой пружине жесткостью 5*10^2Н.м.Определите потенциальную энергию,запасенную в пружине.  Помогите, пожалуйста, срочно  надо.

помогите прочитать английский текст, русскими буквами. When we go for an interview, most of us think carefully about what to wear and what to say but hardly ever about how to act – in other words, what our body language is telling the interviewer. So can we appear cool when we are feeling so nervous? Employers nowadays are cautious about the fast talking interviewee who has learned certain words and phrases but who may be hiding a basic lack of knowledge or simply lying. So they look increasingly for other signs, which will show a person’s character and ability – such as body language. You will be more impressive at an interview if you have prepared by doing a “dress rehearsal” of your facial expressions and hand movements in front of a mirror. It sounds ridiculous but it works. When it comes to facial signals, you should always smile when you enter the interview room and when the interview has finished, because first and last impressions count. Try to smile from eyes first – if models can do this, so can we. There is no worse than a painted – on smile and terrified eyes. You should also try to maintain eye - contact with the interviewer, but not too long. If you are in front of a panel of interviews, look first at the person who asked you a question, and then at each of the other panel members in turn. Looking just at the questioner is a common mistake.

Как решать неравенства, когда дробь, в числителе выражение под корнем, а в знаменателе без корня?

Например,

√x^2-4/x-2 ≥ 0?

В числителе все выражение под корнем.

Яйца в среднем содержат 12,5% белков и 12% жиров. Сколько граммов белков и жиров содержится в десяти яйцах, если одно яйцо весит 60 грамм?