Предмет: Физика, автор: dakovleva772

Сколько оборотов рукоятки колодезного ворота необходимо, чтобы поднять ведро на глубине 8 метров; цепь на которой висит ведро наматывается на вал радиусом 10 см.​

Ответы

Автор ответа: fatt52
1

Ответ:

12.7 об

Объяснение:

h=8 м    R=0.1 м    N=?

===

Длина окружности 2*π*R

N=h/(2*π*R)=8/(2*3.14*0.1)=12.7 об

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