Вопрос школьника по предмету Физика
Найти давление в море на глубине 8 метров с учетом атмосферного давления если на поверхности оно нормальное
Ответ учителя по предмету Физика
Сначала определим давление воды. (р1 ).
р1=ро*g*h . ( po -плотность воды (морской) =1030кг/куб. м, g -ускорение свободного падения=10м/c^2, h -высота столба жидкости ( глубина)) .
p1=1030*9,8*8,2=82771Па.
р2 — атмосферное давление = 101325Па. ( нормальное) .
Полное давление = сумме .p=p1 + p2.
p=82771 + 101325=184096 Па. ( 184кПа ).
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Оказаться между двух… .
А).друзей
В).морей
С).врагов
Д).огней
2).Какие слова отвечают на вопрос что сделаем?
А).пероводить,отдохнёт
В).изучит,выступит
С).принимает,приготовит
Д).вспомнинает,объясняется