Question

з міді та алюмінію виготовили сплав. Маса алюмінію що використали у 2 рази більша за масу міді.Визнач густину сплаву.Уважати що об'єм сплаву дорівнює сумі об'ємів компонентів.(густина міді дорівнює 8900 кг/м³, густина алюмінію дорівнює 2700кг/м³​

Answer 1

Ответ:

3116,6 кг/н³

Объяснение:

Відповідь прикріпив фото

Answer 2

Calculation of Alloy Density

To determine the density of the alloy made from copper (міді) and aluminum (алюмінію), we can use the principle that the volume of the alloy is equal to the sum of the volumes of its components.

Given that the mass of aluminum used is twice the mass of copper, we can assume that the ratio of the masses of aluminum to copper is 2:1. Let's assume the mass of copper is m and the mass of aluminum is 2m.

To calculate the density of the alloy, we need to know the volume of the alloy. Since the volume of the alloy is equal to the sum of the volumes of its components, we can write:

Volume of Alloy = Volume of Copper + Volume of Aluminum

The volume of a substance can be calculated using the formula:

Volume = Mass / Density

Let's calculate the volume of copper and aluminum first.

The density of copper is given as 8900 kg/m³ and the density of aluminum is given as 2700 kg/m³.

Calculation of Volume of Copper:

Volume of Copper = Mass of Copper / Density of Copper

Volume of Copper = m / 8900

Calculation of Volume of Aluminum:

Volume of Aluminum = Mass of Aluminum / Density of Aluminum

Volume of Aluminum = 2m / 2700

Now, let's calculate the volume of the alloy by adding the volumes of copper and aluminum:

Volume of Alloy = Volume of Copper + Volume of Aluminum

Volume of Alloy = m / 8900 + 2m / 2700

To find the density of the alloy, we need to divide the total mass of the alloy by its volume:

Density of Alloy = (Mass of Copper + Mass of Aluminum) / Volume of Alloy

Density of Alloy = (m + 2m) / (m / 8900 + 2m / 2700)

Simplifying the equation:

Density of Alloy = 3m / (m / 8900 + 2m / 2700)

Now, we can substitute the given densities of copper and aluminum into the equation and solve for the density of the alloy.

Please provide the values for the densities of copper and aluminum, and we can proceed with the calculation.