Предмет: Физика, автор: bakugan0183

Полету насекомого сопутствует звук. Почему он
возникает?

Ответы

Автор ответа: ivanovigorr04
0

Ответ:

Причиной является рассекание крыльями насекомого воздух, издавая при этом звук напоминающий жужание. В основном это насекомые у которых высокая частота взмаха кральями(пчелы,комары,жуки). Бабочки являются безшумными.

Объяснение:

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Предмет: Английский язык, автор: skirtactimur
Прочитай текст, познач True / False в реченнях після тексту:

What TV does to children

Many years ago scientists and doctors began serious study of the influence of television on
children and young people. And now they say that after parents television has the greatest
influence on children today.
Of course, watching TV has its good and bad sides. From TV children get information about the
world, they learn new words and begin to use them in their speech. But TV also influences the
development of a child in a negative way. When children spend all day in front of TV sets they
cannot usually find time to read, to play games outside, to talk to their parents and friends.
Some teachers say that children who watch TV every day talk too much at school at the lessons.
They can’t talk at home while watching TV and so they began to talk at school.
TV influences the creative abilities of pupils. Pupils who watch TV a lot can’t understand an
easy story without pictures, tables and illustrations. Television usually makes children passive.
When a child watches TV he lives the lives of TV heroes, he travels with them, does everything
with them. But he is not doing anything he is just sitting in an armchair and watching TV. When
a child watches TV, everything seems very easy to him. And real life begins to seem very easy.
He can not work hard, because watching TV does not need hard work.
1.TV has only positive influence.
2.Children may learn everything from TV.
3.While watching TV children have no time for anything else.
4.Teachers believe that pupils talk too much at the lessons because of TV.
5.TV improves the creative abilities of pupils.
6.Children who watch TV a lot are very active.