Based on the calculations, the approximate ductility (%el) of this brass is equal to 2.3%.
<u>Given the following data:</u>
- Yield strength = 230 mpa (33360 psi).
<h3>What is ductility?</h3>
Ductility can be defined as an important property of a material which determines its ability to become elongated due to the application of stress.
Mathematically, the ductility of a material can be expressed as percentage elongation in length:

<u>Where:</u>
is the original length.
is the final length.
is the yield strength.
For this exercise, let us assume the original length of this brass is equal to 100 meters.
Substituting the parameters into the formula, we have;

Ductility = 2.3%.
Read more on ductility here: brainly.com/question/828860
Inter-molecular forces. The greater the attraction between particles the more energy required to break the forces or "melt" them.
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Answer:
See the answer and explanation below, please.
Explanation:
There are 2 types of combustion:
-Complete: C02 (carbon dioxide) is generated and the flame is blue, in the presence of a large amount of oxygen.
-Incomplete: it is also generated as a product C0 (carbon monoxide) harmful to health, and the color of the flame is yellow. It is produced in the presence of a small amount of oxygen.