Porosity is a cavity-like discontinuity and occurs due to the entrapment of gases in the molten weld pool. These entrapped gases don't get a chance to escape from the molten weld pool and hence cause porosity.
<h3>Which discontinuities are caused during welding?</h3>
Weld discontinuities can be defined as "an interruption of the typical structure of a weld, such as a lack of homogeneity in the mechanical, metallurgical or physical characteristics of the weld." Porosity is considered to be the most critical discontinuity. Weld discontinuities include porosity, incomplete fusion, excessive melt.
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The true statement about the relationship between GDP and democratization is that GDP and democratization tend to rise and fall together.
<h3>What is the relationship
between GDP and democratization?</h3>
Gross domestic product serves as the monetary value that partains to goods and services made within a country .
However, GDP and democratization tend to rise and fall together.
base on the economy at that period.
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Answer:
Mobile phones have become part of our daily lives and besides communication, we have available a vast variety of apps that can make our daily life a lot easier
Explanation:
Answer:
mirror neurons and observational learning
Explanation:
Mirror neurons are the neurons in our body that fire when we try mirror the action of another organism. When we are observing something and are trying to learn it the mirror neurons help us to convert the visual stimulus to motor actions in our body. This entire process is called observational learning.
Here, the tennis player was watching videos of others playing. When she was doing this she was storing all the visual stimulus. After she started to play again the mirror neurons converted the visual stimulus to motor action.
Hence, mirror neurons and observational learning were used here.
