Эти три предложения надо составить в 3 conditional.
1. If Daniel hadn't helped me, I would have been in bad trouble.
2. If I had known you were coming, I would have invited some.
3. Antony had gone to university if his father wouldn't have been ill.
Fill in the correct tense:
1. If I hadn't lied to my boss, he wouldn't have fired me.
2. If he had his car, he would give us a lift to the station.
3. If she were qualified, she would find a good job.
4. If you keep coming to work late, you will lose your job.
5. If he had left on time, he wouldn't have been late for meeting.
6. If you stopped smoking, you would be in better health.
I am interested in a job of lawer, because it is interesting and I like helping people.
Every lawyer must protect the law. I think it is difficult. Besides I think the job of lawer will allow me to have success in my life. I will have good career opportunities. I will be able to earn a high salary. I must be financially independent. More than that I need to work hard. This career requires deep knoweledge, hard working and luck. I also need to develop communication skills. And I should always show initiative. I think I will be a good lawer and I hope I. will be useful for people.
ответ: Средняя плотность планеты Земля = 5482,9 кг/м³
Объяснение: Дано: R - радиус Земли = 6400км = 6400000 м
g - ускорение свободного падения = 9,8 м/с²
G - гравитационная постоянная = 6,67408 *10^-11 м³с^-2 кг^-1
Найти ρ -плотность планеты Земля
Среднюю плотность планеты Земля можно найти по формуле ρ = M/V. Здесь М - масса Земли; V - объем Земли. В первом приближении форму Земли можно считать шарообразной, тогда её объем можно найти по формуле V = 4*π*R³/3. Известно, что g определяется выражением: g = G*М/R². Из этого выражения М = g*R²/G. Подставив найденные выражения для массы и объема в формулу для нахождения плотности, будем иметь: ρ = 3*g*R²/4*G*π*R³ = 3*g/4*G*π*R = 3*9,8/4*6,67408 *10^-11*3,14*6400000 = 5482,9 кг/м³