Какова масса стального листа размером 3 мм × 30 см × 0,4 м? Плотность стали 7800кг/м^3 - Знания.site

Какова масса стального листа размером 3 мм × 30 см × 0,4 м? Плотность стали 7800кг/м^3
- Предмет:
  Физика
- Автор:
  maren
- 5 лет назад

Ответы 1

Масса m=P*V. Считаем объем:
V=3*300*400=360000мм^3=0.00036 м^3
тогда m=0.00036*7800=2.808 кг
- Автор:
  shinerodom
- 5 лет назад
- 0
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