Answer:
and 
Explanation:
Given
Represent the height as h, the length as l and the width as w.
From the question:
Volume of a box is calculated as:
This gives:
Substitute 9 for V
Make h the subject:
The surface area is calculated as:
Recall that:
Recall that:
So:
To minimize the surface area, we have to differentiate with respect to w
Set A' to 0
Add 
to both sides
Multiply both sides by 
Make 
the subject
Solve for w
![w = \sqrt[3]{\frac{27}{8}}](https://tex.z-dn.net/?f=w%20%3D%20%5Csqrt%5B3%5D%7B%5Cfrac%7B27%7D%7B8%7D%7D)
Recall that : and
Hence, the dimension that minimizes the surface area is:
and
Answer:
MRR = 1.984
Explanation:
Given that
Depth of cut ,d=0.105 in
Diameter D= 1 in
Speed V= 105 sfpm
feed f= 0.015 ipr
Now the metal removal rate given as
MRR= 12 f V d
d= depth of cut
V= Speed
f=Feed
MRR= Metal removal rate
By putting the values
MRR= 12 f V d
MRR = 12 x 0.015 x 105 x 0.105
MRR = 1.984
Therefore answer is -
1.944
Answer:
A complex system is a system composed of many components which may interact with each other.
ADVANTAGES
Structs are marginally faster at runtime than classes, due to optimisations done by the compiler. You can enforce full immutability. If you declare a struct instance as let, you will not be able to change its properties.
DISADVANTAGES
A complex corporate structure makes communication more difficult. For instance, when workers must interact with several supervisors, the various directives might work at cross purposes. Also, messages might get lost in the shuffle if there is no simple way to communicate within the organization.
Answer:
A). Dry unit weight = 1657.08Kg/m3
B). Porosity = 0.37
C). Void ratio = 0.593
D). 0.712
Explanation:
Total unit weight, Y = 120pcf =1922.2 Kg/m3
Specific gravity of solids, Gs = 2.64
Water content, w = 16%
A). Dry unit weight
Yd = Y/(1+w)
= 1922.2/(1+0.16) = 1657.08Kg/m3
B). Porosity
However void ratio, e = Gs×Yw/Yd, where Yw = 1000Kg/m3
Void ratio = 2.64×1000/1657.08 = 0.593
And porosity = e/(1+e) =0.593/(1+0.593) = 0.37
C). void ratio, e = 0.593
D). Degree of saturation, S = m×Gs/e where m =water content
S = 0.16×2.64/0.593 = 0.712
Hi there!
1. C) Ancient Structure
2. A) Iterate
3. A) NYC
The first two, I’m sure the third i’m not.
Sorry if I’m wrong and hope this helps !
