Предмет: Математика, автор: Nostal

Каково давление и сила давления на сковороду ди­аметром 9,1 м самого большого омлета, приготовленного в США в 1986 г., если на него пошло 240 кг сыра и 54 763 яйца средней массой по 50 г?Ответ: 450 Па; 29 кН. Дайте решение пожалуйстаа(

Ответы

Автор ответа: Loudon
0
Считаем массу омлета - масса яиц будет 54763*0,05=2738,15 кг, вместе с сыром это 2738,15+240=2978,15 кг. Действующая на него сила тяжести равна mg: 10*2978,15=29781,5 Н.
Теперь находим площадь, на которую давит омлет. Считая её окружностью, находим радиус 9,1/2=4,55 м. Площадь 3,14*4,55*4,55=65 м^2 (округлённо)
Найдём давление как отношение силы и площади её применения: 29781,5/65=458 Па. Так что, плюс-минус округление, всё совпадает
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