Answer:
Im confused, what does this mean
Explanation:
i mean, thx lol
Acid mine drainage is the formation and movement of highly acidic water rich in heavy metals. This acidic water forms through the chemical reaction of surface water (rainwater, snowmelt, pond water) and shallow subsurface water with rocks that contain sulfur-bearing minerals, resulting in sulfuric acid.
The main purpose was for power. The vessel has come to symbolize Sweden's Great Power Period, when the nation became a major European power and controlled much of the Baltic.
Answer:
C: Stop before entering the pedestrian crosswalk.
Explanation:
Answer:
The required wall thickness is
m
Explanation:
Given:
Fluid density
![\frac{kg}{m^{3} }](https://tex.z-dn.net/?f=%5Cfrac%7Bkg%7D%7Bm%5E%7B3%7D%20%7D)
Diameter of tank
m
Length of tank
m
F.S = 4
For A-36 steel yield stress
MPa,
Allowable stress ![\sigma _{allow} = \frac{\sigma}{F.S}](https://tex.z-dn.net/?f=%5Csigma%20_%7Ballow%7D%20%3D%20%5Cfrac%7B%5Csigma%7D%7BF.S%7D)
MPa
Pressure force is given by,
![P = \rho gh](https://tex.z-dn.net/?f=P%20%3D%20%5Crho%20gh)
![P = 1200 \times 9.8 \times 4](https://tex.z-dn.net/?f=P%20%3D%201200%20%5Ctimes%209.8%20%5Ctimes%204)
Pa
Now for a vertical pipe,
![\sigma _{allow} = \frac{Pd}{4t}](https://tex.z-dn.net/?f=%5Csigma%20_%7Ballow%7D%20%3D%20%5Cfrac%7BPd%7D%7B4t%7D)
Where
required thickness
![t = \frac{Pd}{4 \sigma _{allow} }](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7BPd%7D%7B4%20%5Csigma%20_%7Ballow%7D%20%7D)
![t = \frac{47088 \times 8 }{4 \times 62.5 \times 10^{6} }](https://tex.z-dn.net/?f=t%20%3D%20%5Cfrac%7B47088%20%5Ctimes%208%20%7D%7B4%20%5Ctimes%2062.5%20%5Ctimes%2010%5E%7B6%7D%20%7D)
m
Therefore, the required wall thickness is
m