Предмет: Физика, автор: Аноним

Сплав состоит из золота массой 3,5 кг и серебра массой 1,5 кг. Определите плотность сплава если считать что объем сплава равен суммe объемом его составных частей? Плотность золота и серебра ракны 19300 кг/м? и 10500 кг/м³ соответственно.​

Ответы

Автор ответа: gribsamodelshik
1

Ответ:

p = m/V ⇒ m = p*V ⇒ V = m/p

V1 = 3.5/19300 = 0.00018134715 м3 = 0.18134715 л

V2 = 1.5/10500 = 0.00014285714 м3 = 0.14285714 л

p=m/V = (3.5+1.5) / (0.18134715 + 0.14285714) = 5 / 0.32420429 = 15.4223745775 кг/л = 15000 кг/м3

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