I don’t think I can help you with this but I hope you get the answer, have a nice day!
Based on the chart, the correct options are:
- The production of coal decreased, while the production of solar increased; option D.
- Solar energy technology has improved and increased in capacity, but coal has decreased in capacity because it is a limited resource; option A
<h3>What is solar energy?</h3>
Solar energy is a type of renewable energy from the sun.
Solar energy is gradually being used to replace non-renewable energy sources such as coal.
Based on the chart:
The production of coal decreased, while the production of solar increased; option D.
Solar energy technology has improved and increased in capacity, but coal has decreased in capacity because it is a limited resource.
In conclusion, solar energy production is increasing.
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Answer:
A) Cm = 2.232 s/mm²
B) Time taken to solidify = 74.3 seconds
Explanation:
(A) Since a side is 50mm and all sides of a cube are equal, thus, Volume of the cube is;V = 50 x 50 x 50 = 125,000 mm³
There are 6 faces of the cube, thus Surface Area A = 6 x (50 x 50) = 15,000 mm²
So, Volume/Area = (V/A) = 125,000/15,000 = 8.333 mm
Cm is given by the formula; Cm =[Tts] /(V/A)² where Tts is time taken to solidify and it's 155 seconds in the question. Thus;
Cm = 155/(8.333)²= 2.232 s/mm²
(B) For;Cylindrical casting with D = 30 mm and L = 50 mm.;
Volume of cylinder is;
V = (πD²L) /4
So,V = (π x 30² x 50)/4 = 35,343mm³
Surface area of cylinder is;
A = (2πD²)/4 + (πDL)
Thus, A = ((π x 30²)/2) + (π x 30 x 50) = 6126 mm²
Volume/Area is;
V/A = 35,343/6126 = 5.77 mm
Same alloy and mold type was hsed as in a above, thus, Cm is still 2.232 s/mm²
Since Cm =[Tts] /(V/A)²
Making Tts the subject, we have;
Tts =Cm x (V/A)²
Tts = 2.232 x (5.77)² = 74.3 seconds
Yea your correct I believe... hardly understood what it meant when I read it so I could be wrongT.T
The capture theory of regulation holds that there are certain regulations which are enforced by the regulator agencies and individuals.
<h3>What is the theory of regulation?</h3>
The theory of regulatory was attached to some individual such as Nobel laureat and George Stigler the theory explains the phenomenon of a regulation is managed by designated individual who ensures that people comply to regulations.
We have private and public regulations and agency vested with the task to oversee a specific industries are exposed to risk.
Therefore,
The capture theory of regulation holds that there are certain regulations which are enforced by the regulator agencies and individuals.
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