Answer:
The peripheral system allows the brain and spinal cord to receive and send information to other areas of the body, which allows us to react to stimuli in our environment.
The nerves that make up the peripheral nervous system are actually the axons or bundles of axons from nerve cells or neurons.
DescriptionStructural analysis is the determination of the effects of loads on physical structures and their components.
Answer:
the range of K can be said to be : -3.59 < K< 0.35
Explanation:
The transfer function of a typical tape-drive system is given by;
![KG(s) = \dfrac{K(s+4)}{s[s+0.5)(s+1)(s^2+0.4s+4)]}](https://tex.z-dn.net/?f=KG%28s%29%20%3D%20%5Cdfrac%7BK%28s%2B4%29%7D%7Bs%5Bs%2B0.5%29%28s%2B1%29%28s%5E2%2B0.4s%2B4%29%5D%7D)
calculating the characteristics equation; we have:
1 + KG(s) = 0
![1+ \dfrac{K(s+4)}{s[s+0.5)(s+1)(s^2+0.4s+4)]} = 0](https://tex.z-dn.net/?f=1%2B%20%20%20%5Cdfrac%7BK%28s%2B4%29%7D%7Bs%5Bs%2B0.5%29%28s%2B1%29%28s%5E2%2B0.4s%2B4%29%5D%7D%20%3D%200)
![{s[s+0.5)(s+1)(s^2+0.4s+4)]} +{K(s+4)}= 0](https://tex.z-dn.net/?f=%7Bs%5Bs%2B0.5%29%28s%2B1%29%28s%5E2%2B0.4s%2B4%29%5D%7D%20%2B%7BK%28s%2B4%29%7D%3D%200)
We can compute a Simulation Table for the Routh–Hurwitz stability criterion Table as follows:
1 5.1 2+ K
1.9 6.2 4K
1.83 
0
4K 0
S 
0 0
We need to understand that in a given stable system; all the elements in the first column is usually greater than zero
So;
11.34 - 1.9(X) > 0
7.54 +2.1 K > 0
2.1 K > - 7.54
K > - 7.54/2.1
K > - 3.59
Also
4K >0
K > 0/4
K > 0
Similarly;
XY - 7.32 K > 0
![(\dfrac{3.8+1.9K-4K}{1.9})[11.34 - 1.9(\dfrac{3.8+1.9K-4K}{1.83}) > 7.32 \ K]](https://tex.z-dn.net/?f=%28%5Cdfrac%7B3.8%2B1.9K-4K%7D%7B1.9%7D%29%5B11.34%20%20-%201.9%28%5Cdfrac%7B3.8%2B1.9K-4K%7D%7B1.83%7D%29%20%3E%207.32%20%5C%20K%5D)
0.54(2.1K+7.54)>7.32 K
11.45 K < 4.07
K < 4.07/11.45
K < 0.35
Thus the range of K can be said to be : -3.59 < K< 0.35
Answer:
(a) Aluminum Indium Gallium Phosphide (AlInGaP). Band gap = 1.81eV ≈ 2eV
(b) Gallium Nitride (GaN). Band Gap = 3.4eV
(c) Aluminium Gallium Arsenide (AlGaA). Band Gap = 1.42eV ≈ 2.16eV
(d) Zinc Selenide (ZnSe). Band Gap = 2.82eV
(e) Gallium Phosphide (GaP). Band Gap = 2.24eV
Explanation:
LED's are semi-conducting materials that convert electrical energy to light energy. The light color emitted from the LED depends on the semi-conducting material and other compositions.
The band gap of the semi-conductor determines its wavelength. High band gap semi-conductors emit lower wavelengths which means greater power(UV semi-conducting macterials fall under this category).
