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 answer is A.
Spartans were known for being considerably brutal throughout the war, their general policies were extreme.
Answer:
3.46 x 10^8 m
Explanation:
Let the distance from the earth be r, total distance from earth to moon be d,
then distance from the moon to the point of equal gravity= d -r.
Mass of the earth, M_E = 598 x 10^22 kg
Mass of the moon, M_m= 7.36 x 10^22 kg
Distance of the mood from the earth, d = 3.85 x 10^8 m
Force of gravity exerted on a mass, m by the earth,
F_E = G. M_E×m/r^2
Force of gravity exerted on a mass, m by the moon,
F_m = G×M_m×m/(d-r)^2
These are equal, So
G×M_E.m/r^2 =G×M_m.m/(d-r)^2
[r/(d - r)]^2= M_E/M_m
= 598/7.36 = 81.25
r/(d - r) = √81.25 = 9.014
9.014×(d - r) = r
10.014.r = 9.014 x 3.85 x 108
Hence, r= 9.014 x 3.85 x 108 /10.014
= 3.46 x 10^8 m
Answer:
gave authority to develop a program of rehabilitation of our banking facilities. ... The new law allows the twelve Federal Reserve Banks to issue additional currency on good assets and thus the banks that reopen will be able to meet every legitimate call.
The correct answer to this open question is the following.
Although there are no options attached we can say the following.
Do the economic benefits of free trade outweigh the social costs?
Not really, and it all depends on the perspective.
From the big companies and industrial side, free trade has been a success. Free trade has allowed thousands of companies to export their goods with cero import tariffs, benefiting the income. It has allowed multinational companies to go abroad and establishing branches in different parts of the world, basically in underdeveloped nations.
Once there, they paid very low salaries, much less than what they should have paid in their former countries, That is a reason why they moved to underdeveloped countries. So cheap labor is one reason. And other these multinational companies freely exploit the many raw materials and natural resources of that underdeveloped country.
Meanwhile, free trade makes rich people and corporations richer, and poor countries and poor people continue to be as poor as they have always been. No serious progress at all,
