Предмет: Физика, автор: Аноним

Определите плотность жидкости, если слой высотой 25 см оказывает давление 2кПа.

Ответы

Автор ответа: Dимасuk

89

Давление, которой оказывает жидкость на дно и стенки сосуда равно:
$P = pgh$ , отсюда $p = \frac{P}{gh}$
Переведем см в м.
25 см = 0,25 м.
килопаскали в паскали:
2кПа $p = \frac{2000IIa}{0,25m*10 \frac{m}{c ^{2} } } = 800 \frac{kg}{m ^{2} }$ = 2000 Па

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