Вопрос школьника по предмету Физика
Дано:
S=5 см²
F=2,4 м
h=?
Решите задачу,срочно,даю 10 баллов
Ответ учителя по предмету Физика
Дано: Решение:
S=5см²=0,0005м² h=p/ρg
F=2,4Н p=F/S
g=9,8H/кг≈10Н/кг p=2,4/0,0005=4800Па
ρ=1000кг/м³ h=4800/(1000·10)=4800/10000=0,48м
Найти: h 0,48м=48см
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0,1+8,4+x=4
Чем Робинзон побоялся стать в глазах друзей и знакомых если бы сразу вернулся домой?