Answer:
Engine horsepower decreases <u>3.5%</u> for every <u>1,000</u> feet above sea level.
Answer:
2132hp ed enregia
e
Explanation:
dawdsawdsawdsawdsawdsawdsawdaas
Answer:
One of the differences is that civil engineering focuses on design elements while structural engineering is more concern on inspecting the materials used for construction. The structural engineers are the one who are supposed to ensure that the materials used for construction can support the design of the structure.
Explanation:
Answer:
Explanation:
Given data:
initial construction co = 0.286 wt %
concentration at surface position cs = 0 wt %
carbon concentration cx = 0.215 wt%
time = 7 hr
![D = 7.5 \times 10^{-11} m^2/s](https://tex.z-dn.net/?f=D%20%3D%20%207.5%20%5Ctimes%2010%5E%7B-11%7D%20m%5E2%2Fs)
for 0.225% carbon concentration following formula is used
![\frac{cx -co}{cs -co} = 1 - erf(\frac{x}{2\sqrt{DT}})](https://tex.z-dn.net/?f=%5Cfrac%7Bcx%20-co%7D%7Bcs%20-co%7D%20%3D%201%20-%20erf%28%5Cfrac%7Bx%7D%7B2%5Csqrt%7BDT%7D%7D%29)
where, erf stand for error function
![\frac{cx -co}{cs -co} = \frac{0.215 -0.286}{0 -0.286} =0.248](https://tex.z-dn.net/?f=%5Cfrac%7Bcx%20-co%7D%7Bcs%20-co%7D%20%3D%20%5Cfrac%7B0.215%20-0.286%7D%7B0%20-0.286%7D%20%3D0.248)
![0.248 = 1 - erf(\frac{x}{2\sqrt{DT}})](https://tex.z-dn.net/?f=0.248%20%3D%201%20-%20erf%28%5Cfrac%7Bx%7D%7B2%5Csqrt%7BDT%7D%7D%29)
![erf(\frac{x}{2\sqrt{DT}}) = 1 - 0.248](https://tex.z-dn.net/?f=erf%28%5Cfrac%7Bx%7D%7B2%5Csqrt%7BDT%7D%7D%29%20%3D%201%20-%200.248)
![erf(\frac{x}{2\sqrt{DT}}) = 0.751](https://tex.z-dn.net/?f=erf%28%5Cfrac%7Bx%7D%7B2%5Csqrt%7BDT%7D%7D%29%20%3D%200.751)
from the table erf(Z) value = 0.751 lie between (z) = 0.80 and z = 0.85 so by inteerpolation we have z = 0.815
from given table
![\frac{x}{2\sqrt{DT}} = 0.815](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7B2%5Csqrt%7BDT%7D%7D%20%3D%200.815)
![x = 2\times 0.815 \times \sqrt{7.5 \times 10^{-11}\times (7\times 3600)](https://tex.z-dn.net/?f=x%20%3D%202%5Ctimes%200.815%20%5Ctimes%20%5Csqrt%7B7.5%20%5Ctimes%2010%5E%7B-11%7D%5Ctimes%20%287%5Ctimes%203600%29)
![x = 2.39\times 10^{-3} m](https://tex.z-dn.net/?f=x%20%3D%202.39%5Ctimes%2010%5E%7B-3%7D%20m)
x = 0.002395 mm
Attached is the solution to the above question.