Answer:CNC machining is a manufacturing process in which pre-programmed computer software dictates the movement of factory tools and machinery. The process can be used to control a range of complex machinery, from grinders and lathes to mills and routers
Explanation:
Answer:
The material that is not used for wood sanding is
3. Emery
Explanation:
The materials recommended for use as materials for wood sanding includes;
1) Garnet paper is a very brittle moderately hard, self sharpening and durable material which is a popular choice of most woodworkers
2) Aluminum oxide is used for the sanding of hardwood
3) Emery is used for the smoothening of a metal surface
4) Silicon carbide has a faster effect rate than aluminum oxide, and it is used to smoothen woodwork objects
Therefore, the material that is not used for wood sanding is Emery
Answer:
Applied pressure on piston (P) = 50 psi. We know that work done is given by W = Force x displacement. S Force = Pressure x Areas > W = ( PXA ) X L W = PX ( AL ) W = PX AV = 50x 43.7088. W= 2185.
Please give me brainliest - you get 25% as well! I swear!
Solution :
Given :
The number of blows is given as :
0 - 6 inch = 4 blows
6 - 12 inch = 6 blows
12 - 18 inch = 6 blows
The vertical effective stress ![$=1500 \ lb/ft^2$](https://tex.z-dn.net/?f=%24%3D1500%20%5C%20lb%2Fft%5E2%24)
![$= 71.82 \ kN/m^2$](https://tex.z-dn.net/?f=%24%3D%2071.82%20%5C%20kN%2Fm%5E2%24)
![$ \sim 72 \ kN/m^2 $](https://tex.z-dn.net/?f=%24%20%5Csim%2072%20%5C%20kN%2Fm%5E2%20%24)
Now,
![$N_1=N_0 \left(\frac{350}{\bar{\sigma}+70} \right)$](https://tex.z-dn.net/?f=%24N_1%3DN_0%20%5Cleft%28%5Cfrac%7B350%7D%7B%5Cbar%7B%5Csigma%7D%2B70%7D%20%5Cright%29%24)
corrected N - value of overburden
effective stress at level of test
0 - 6 inch, ![$N_1=4 \left(\frac{350}{72+70} \right)$](https://tex.z-dn.net/?f=%24N_1%3D4%20%5Cleft%28%5Cfrac%7B350%7D%7B72%2B70%7D%20%5Cright%29%24)
= 9.86
6 - 12 inch, ![$N_1=6 \left(\frac{350}{72+70} \right) $](https://tex.z-dn.net/?f=%24N_1%3D6%20%5Cleft%28%5Cfrac%7B350%7D%7B72%2B70%7D%20%5Cright%29%20%24)
= 14.8
12 - 18 inch, ![$N_1=6 \left(\frac{350}{72+70} \right) $](https://tex.z-dn.net/?f=%24N_1%3D6%20%5Cleft%28%5Cfrac%7B350%7D%7B72%2B70%7D%20%5Cright%29%20%24)
= 14.8
![$N_{avg}=\frac{9.86+14.8+14.8}{3}$](https://tex.z-dn.net/?f=%24N_%7Bavg%7D%3D%5Cfrac%7B9.86%2B14.8%2B14.8%7D%7B3%7D%24)
= 13.14
= 13