Предмет: Физика, автор: gngmwjxg

вычислить сопротивление проводника из стали с удельным сопротивлением- 2×10^-7 Ом, длиной проводника 10м, площадь попер. сечения-10мм^2

Ответы

Автор ответа: hgjdghjdghj
0
R=pl/s,R=0,0000002*10/0,00001=0,2,все!!!
Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Литература, автор: GReenARoow
Что удивило Тараса в одежде Остапа и Андрия?
7 лет назад
Предмет: Қазақ тiлi, автор: aabsolutely29
бозторғай туралы мақал мәтел ​
7 лет назад
Предмет: Английский язык, автор: anonnnnn8161
1. Заполните пропуски модальными глаголами

1. ... I come in? 2. You .... not smoke here. 3. .... take your book? — I am afraid not: I need it. 4. He .... not speak English yet. 5. I have very little time: I must go. 6. They .... not go to the park today because they are busy. 7. You ... read this text: it is easy enough. 8. What ... we see on this map? 9. ... you speak Spanish? — No, unfortunately I ... 10. At what time ... you come to school? 11. She ... still live in Paris. 12. He is busy. He ... be writing a book about his travels. 13. But he is happy. He ... enjoy life. 14. My friend Danielle isn't a famous artist. But she ... even paint Russian icons. I ... only admire her beautiful pictures. She ... be a woman of great talents. She ... speak German, French and English. She ... translate a lot of articles for the Museum of her native town in Switzerland. She ... also teach these languages at school. She is fantastic. I am fascinated by everything that she does. 15. You ... not come to help them tomorrow: the work is done. 16. You ... not change the whole text as the beginning is all right. You ... only rewrite the second part of it. 17. Ann ... not go to his birthday party yesterday because she ... go to the dentist. 18. You ... take medicine three times a day before meals. 19. She ... decorate a room nicely.
7 лет назад
Предмет: Геометрия, автор: Ksjusha145

a^2=b^2+c^2-2bc*cosA

как найти cosA

как вывести?
10 лет назад
Предмет: Алгебра, автор: Lenor2424

Решите уравнение log4(sinx+sin2x+16)=2.
10 лет назад