Мощный башенный кран может поднять 5т.

Если для подъёма груза двигатель развивает можность 30кВт

то в течении какого времени груз будет поднят на высоту 20м?(желательно решение с решением)

 найти текст по науково-популярному  стилю про фауну..рееебят помогитеее,срочноо 

Прочитайте текст. Установите соответствие вопросов A—G текстам 1-7. Занесите ответы в таблицу. Один текст лишний.

A was discovered in the last century?

В is the hottest?

C got its name after a Roman god ?

D is known for its density?

E comes the second after Jupiter in size?

F was discovered by a musician?

G is believed to have water on the surface?

1 Venus, one of the planets in the solar system, is the second in distance from the Sun. Except for the Sun and the Moon, Venus is the brightest object in the sky. The planet is called the morning star when it appears in the east at sunrise, and the evening star when it is in the west at sunset. Venus is never visible more than three hours before sunrise and three hours after sunset. The surface temperature is the hottest of any planet - about 477C.

2 Jupiter is the largest planet in the solar system. It is the fourth brightest object in Earth’s sky, after the Sun, the Moon, and Venus. The Romans named the planet for their chief god, Jupiter, because of its prominence in the sky. Jupiter is a ball of gas and has no solid surface.

3 Pluto is farther from the Sun than the other planets in the solar system. The small, rocky, and cold planet takes 247,7 years to revolve around the Sun. It was discovered in 1930. Pluto is the most distant planet in the solar system and it is very difficult to be detected. century Shakespeare and his friends had enough money to build their own

4. Uranus is a major planet in the solar system. Uranus has 11 known rings and 27 moons. Uranus was the first planet that people discovered by using a telescope. Sir William Herschel, a German-born British musician and astronomer, discovered the planet in 1781.

5. Mercury is the closest planet to the Sun. Mercury is surprisingly dense because it has a very large iron core. Mercury’s surface is similar to the Moon’s because many asteroids constantly fall on it

6. Saturn is the second largest planet in the solar system. Saturn has its own ring system which was first seen by the Italian scientist Galileo in 1610. He did not understand that the rings were separate from the body of the planet. Later the rings were described correctly.

Напишите пожалуйста реакцию прокаливания карбоната натрия.

В полнолуние все рыбы собрались во дворце золотой Рыбки. Совет старейшин из 75 рыб вместе с молодняком из 1525 рыб составляют одну четвертую часть всех рыб, приплывших во дворец. сколько всего рыб собралось во дворце золотой рыбки?