Answer:
i) 0.610 m or 610 mm
ii) 0.4 m or 400 mm
Explanation:
The pressure difference between the pipes is
a) Air
Pa + πha +Ha = Pb + πhb +Hb
Pa - Pb = π(hb-ha) + Hb-Ha
Relative density of air = 1.2754 kg /m3
Pa - Pb = 1.2754 * 0.4 + (0.3-0.2) = 0.610 m or 610 mm
b) paraffin of relative density of 0.75
Pa - Pb = π(hb-ha) + Hb-Ha
Pa - Pb = 0.75 * 0.4 + (0.3-0.2) = 0.4 m or 400 mm
Answer:
20 years
Explanation:
You do 2,000,000 ÷ 100,000 but you can simplify that to 20 ÷ 1 = 20
During those 20 years, the profits you earn will be 80,000 since when you do 2,000,000 x 0.04 but you can simplify that to 20,000 x 4 getting 80,000 and that quite doesn't reach 100,000 dollars
Answer:
747464646647477565756t6565665664674646465765
Answer:
The attached system shows that there’s an integrator between the point where disturbance enters the system and error measuring element. A any time when R(s)=0 then
and considering that 
then
For ramp disturbance d(t)=at
therefore, the steady state error is given by
![e(\infty)= \lim_{s \to 0} s [\frac {D(s)}{1+G_c(s)G(s)}]](https://tex.z-dn.net/?f=e%28%5Cinfty%29%3D%20%5Clim_%7Bs%20%5Cto%200%7D%20s%20%5B%5Cfrac%20%7BD%28s%29%7D%7B1%2BG_c%28s%29G%28s%29%7D%5D)
![e(\infty)= \lim_{s \to 0} s [\frac {a}{s^{2}+s^{2}G_c(s)G(s)}]](https://tex.z-dn.net/?f=e%28%5Cinfty%29%3D%20%5Clim_%7Bs%20%5Cto%200%7D%20s%20%5B%5Cfrac%20%7Ba%7D%7Bs%5E%7B2%7D%2Bs%5E%7B2%7DG_c%28s%29G%28s%29%7D%5D)
![e(\infty)= \lim_{s \to 0} s [\frac {a}{s+sG_c(s)G(s)}]](https://tex.z-dn.net/?f=e%28%5Cinfty%29%3D%20%5Clim_%7Bs%20%5Cto%200%7D%20s%20%5B%5Cfrac%20%7Ba%7D%7Bs%2BsG_c%28s%29G%28s%29%7D%5D)
![e(\infty)= \lim_{s \to 0} s [\frac {a}{sG_c(s)G(s)}]](https://tex.z-dn.net/?f=e%28%5Cinfty%29%3D%20%5Clim_%7Bs%20%5Cto%200%7D%20s%20%5B%5Cfrac%20%7Ba%7D%7BsG_c%28s%29G%28s%29%7D%5D)
Whenever 
has a double intergrator, the error 
becomes zero
