мяч брошен под углом к горизонту.Время его полёта 4 с.Рассчитайте наибольшую высоту подъёма мяча.

Между какими целыми числами находится число 3 корня из 5? Как найти???

Part III
Choose the right form of the verbs be and have.1. I know that place very well — I ... there last summer.
is
was
have been
had been

2. — Do you know that a new entertainment park has been built right opposite your house?
— Yeah, I ... there — nothing interesting at all.
has been
have been
was
will be

3. — Our train leaves at 9.30. Please don`t be late!
— Don`t worry, I ... on time.
am
be
was
wi11 be

4. The weather forecast says that it ... very warm in October.
wi11 be
be
is
has been

5. Hello! I ... really very glad to see you again!
is
are
have been
am

6. I was at the seaside a couple of weeks ago. I ... a wonderful holiday.
have
have had
had had
had

7. It`s very hot and stuffy here. I think I ... a short walk before going to bed.
have
wi11 have
had
have had

8. I`m not hungry. I ... lunch not long ago.
have
had
have had
wi11 have

9. He ... many jobs before he became a jockey.
have
has
has have
had had

10. Please don`t disturb me. I ... a very important telephone conversation.
have
am having
had
have had

Расстояние между двумя городами 600 км. Автомобиль выехал из одного города в другой. Запишите формулу для вычисления расстояния S, которое ему осталось проехать через t, если он едет со скоростью v км/ч

Стравнить Число молекул 0,5 г  азота N 2 и 0,5 г  метана CH4