A piece of copper, the volume of which is 15 cm cubic, and a piece of zinc, the volume of which is 10 cm cubic
| June 20, 2021 | education
A piece of copper, the volume of which is 15 cm cubic, and a piece of zinc, the volume of which is 10 cm cubic, was fused. What is the mass of 1 cm of cubic alloy, if the mass of 1 cm of cubic copper is 8.9 g, and the mass of 1 cm of cubic zinc is 7.1 g?
Find the amount of copper:
15 * 8.9 = 133.5 g.
Zinc amount:
10 * 7.1 = 71 g.
Then the total weight of the resulting alloy will be:
133.5 + 71 = 203.5 g.
And its volume:
10 + 15 = 25 cm ^ 3.
The weight of one cm ^ 3 alloy will be equal to:
203.5: 25 = 8.1 g
Answer: the weight of one cm ^ 3 alloy was 8.1 g.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
