Предмет: Физика, автор: DariaVasilieva1252

Каждую секунду насос подает 20л воды на высоту 10м. Какая работа совершается за 1 час работы

Ответы

Автор ответа: MashaPutnaj
0
Каждую секунду насос подает V=20л воды на высоту h=10м. Какая работа совершается за t=1 час=3600 c работы
А - ?

работа за  за 1 секунду это мощность P= m*g*h/t1=20*10*10/1=2000 Вт

А=P*t=2000 *3600=7,2 МДж
Автор ответа: DariaVasilieva1252
0
огромное спасибо:)
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