что такое равномерное движение по окружности? как выражаются угловая и линейная скорость - Дата: 04.02.2020, Автор: lorenasrtc

что такое равномерное движение по окружности? как выражаются угловая и линейная скорость кругового движения ? напишите формулы и единицы
- Предмет:
  Физика
- Автор:
  lorenasrtc
- 4 года назад

Ответы 1

Равномерное движение по окружности – это криволинейное движение. Например, по окружности движется конец стрелки часов по циферблату.Угловая скорость вращения: ω=2п / T Линейная : v= S /T , где "S" = 2пR , а где "T" период.v= 2пR/ Tv= 2пRu , где "u" частота.
- Автор:
  frederick10
- 4 года назад
- 0
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Ответьте на вопросы по тексту)Пожалуйста побыстрее очень срочно надо!!!!
ALI BABA AND FORTY THIEVES
Ali Baba was such a poor man that he had only one shoe for his two feet. Even mice in his house were hungry.

One day his wife said, “We have no food in the house. No rice. No potatoes. Go and collect leaves in the forest so that I can make a soup.”

Ali was a lazy man. He looked for leaves for about ten minutes and then he climbed a tree to sleep. He was afraid of wolves. When he woke up he was surprised to see forty thieves on forty horses. They stopped in front of the big rock.

“Open, Sesame!” shouted the leader. A door in the rock opened. The thieves carried sacks full of gold into the cave. When they had finished, the leader shouted, “Close, Sesame!” and the door closed. As soon as the thieves had disappeared, Ali Baba jumped down from the tree and said, “Open, Sesame” and went into the cave.

There were shelves all around the walls. The shelves were full of sacks. The sacks were full of gold. Ali took a sack home with him.

One of the thieves saw Ali’s footprints on the sand. He followed them to Ali’s home. He took out his knife and made a cross on the door.

“Now I shall know which house it is”, he said. He rode off to get the other thieves. But Ali had seen the thief.

He and his wife took the brooms and swept away the footprints. Then he made crosses on every door in the street. When the forty thieves arrived they had their knives between their teeth. But they never found Ali – or the gold. And Ali and his wife lived happily ever after.
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2) Who took brooms and swept away the footprints?

3) What did forty thieves have between their teeth?

4) Whom did the thieves never find?
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что такое равномерное движение по окружности? как выражаются угловая и линейная скорость кругового движения ? напишите формулы и единицы

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