Предмет: Физика, автор: jfcnljhcv606

Яку роботу за 20 секунд виконує механізм потужністю 800 Вт.
!!!!!Пж срочно дуже треба!!!!!​

Аноним: A = Pt = 800 Вт * 20 с = 1600 Дж = 1,6 кДж

Ответы

Автор ответа: iamvasyax
0
А=p*t
A=20с*800Вт=1600Дж
Автор ответа: Daria10kksk
0

Відповідь:P=40 Вт

Пояснення:P=A/t

P=800 Дж*20 c=40 Вт

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Українська мова, автор: amomimka
написати лист святому миколаю на 1 сторінку мінімум​
1 год назад
Предмет: Английский язык, автор: konstantinovmatvej35
Dancing in the UK Many of us love dancing or watching dancing. But why do you think we do it? It's strange when you think about it. When we dance, we don't go anywhere and we don't make anything, so what's the reason for it? Today in the UK dance is very popular. About 5 million people go to dance classes every week. There are many styles but the most popular are street-dancing, ceroc, ballet and salsa. Street-dancing has got many styles including breaking, hip-hop and popping. It's popular with young people and you have to be very flexible. Some people say we do this kind of dance to show our friends how strong and skilful we are. Ceroc is a simple version of swing, salsa and jive. You can do ceroc to fast or slow music. It is very popular with middle-aged people because dancing is a good way to keep fit. Ballet is popular all over the world. There are many spins and jumps in ballet. It's very difficult and you must do a lot of training to be good at it. Ballet usually tells stories and people think it's very beautiful. Salsa is from Cuba. The word 'salsa' is Spanish for hot and spicy sauce. Salsa dancers have got a lot of passion and energy. People usually dance salsa to fast and fun music. One reason we do this dance is to show how attractive we are to other peope. So there are many reasons why we dance. Whatever the reason everyone agrees that dancing is great fun. GLOSSARY attractive (adj) good-looking flexible (adj) bends and moves easily skilful (adj) good at doing something spicy (adj) a strong, pleasant taste​
5 вопросов к тексту: общий, специальный,альтернативный, ещё какой-то 4
1 год назад
Предмет: Алгебра, автор: bakhtaryalinaromanov
помогите,дам 13 балов
1 год назад
Предмет: Математика, автор: leontevvvv
10^3*5+45=??????????????????
6 лет назад
Предмет: Английский язык, автор: keitlyane
Помогите пожалуйста

Выполните следующие грамматические задания, выбрав правильный ответ из предложенных:

1. Your picture is a great deal better than … .
a) mine b) my c) her
2. Where are the … coats?
a) children b) children’s c) childrens’
3. She didn’t tell … about her plans.
a) anyone b) someone c) nobody
4. Let’s buy these apples. They are … .
a) the goodest b) the best c) gooder
5. We usually go shopping on … Sundays.
a) the b) a c) –
6. We are late. We have very … time.
a) little b) few c) many
7. Bad news … people happy.
a) don’t make b) doesn’t make
8. There were many old … on the wall.
a) photos b) photoes c) photo
9. It’s … today than yesterday.
a) much hotter b) much hoter c) very hot
10. I’ve lived here … 1987.
a) since b) for c) ago
11. You enjoyed the film, … ?
a) didn’t you b) don’t you c) aren’t you
12. When … snowing?
a) it started b) did it started c) did it start
13. I’m sorry I couldn’t come yesterday. I … work late.
a) had to b) had c) must
14. When I … Tom tomorrow, I’ll invite him to our party.
a) will see b) see c) sees
15. The theatre … in a year.
a) will be build b) will be built c) is built
16. Neil Armstrong … to the moon many years ago.
a) has gone b) had gone c) went
17. I’ve heard about the film but I … it yet.
a) don’t see b) saw c) haven’t seen
18. The phone rang when I … a newspaper.
a) was reading b) read c) had read
19. He … for a new job at the moment.
a) looks b) is looking c) doesn’t looks
20. Andrew … for this company for ten years so far.
a) had been working b) had worked c) has been working
6 лет назад